{"title":"Tank Lids","description":null,"products":[{"product_id":"polypropylene-tank-lid-250mm-8-threaded-with-handle","title":"Polypropylene Tank Lid 250mm – 8\" Threaded with Handle","description":"\u003cp\u003e\u003cstrong\u003eDurable polypropylene tank lid designed for 8\" tanks with quick-access ergonomic handle and secure threaded fit.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis threaded plain tank lid features a 250mm outer diameter and 210mm thread diameter, engineered to create a watertight seal on compatible tank collar rings. The lightweight polypropylene construction combines durability with ease of handling, whilst the ergonomic handle allows rapid opening and closing without tools or additional fittings.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable, lightweight polypropylene construction\u003c\/li\u003e\n\u003cli\u003eMale thread design – no vent hole\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for one-handed operation\u003c\/li\u003e\n\u003cli\u003eQuick and easy installation and removal\u003c\/li\u003e\n\u003cli\u003eCreates watertight seal when threaded into compatible collar\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNominal size: 8 inches\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 250mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 210mm\u003c\/li\u003e\n\u003cli\u003eThread type: Male\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003cli\u003eVent: None\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage tank access and sealing\u003c\/li\u003e\n\u003cli\u003eIndustrial liquid storage vessels\u003c\/li\u003e\n\u003cli\u003eAgricultural water collection systems\u003c\/li\u003e\n\u003cli\u003eCommercial tank systems requiring frequent access\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705883910437,"sku":"DP8146000","price":22.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/a63d6735ab84007545cfab07f46b5a74.jpg?v=1788097880"},{"product_id":"8-threaded-tank-lid-with-non-return-valve-250mm-polypropylene","title":"8\" Threaded Tank Lid with Non-Return Valve – 250mm Polypropylene","description":"\u003cp\u003e\u003cstrong\u003eThreaded polypropylene tank lid featuring an integrated non-return valve for secure, contamination-free ventilation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 8-inch tank lid threads securely into a compatible lid ring collar, creating a watertight seal. The ergonomic handle enables quick and easy opening and closing, whilst the built-in non-return valve allows air pressure to equalise without permitting contaminants or debris to enter the tank.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIntegrated non-return valve prevents backflow and contamination ingress\u003c\/li\u003e\n\u003cli\u003eLightweight and durable polypropylene construction\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for convenient access\u003c\/li\u003e\n\u003cli\u003eQuick-thread design for secure installation\u003c\/li\u003e\n\u003cli\u003e250mm outer diameter with 210mm thread diameter\u003c\/li\u003e\n\u003cli\u003eCompatible with standard tank collar systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOuter diameter: 250mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 210mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003cli\u003eValve type: Non-return (one-way)\u003c\/li\u003e\n\u003cli\u003eThread fitment: Standard tank collar\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage tanks and reservoirs\u003c\/li\u003e\n\u003cli\u003eIndustrial and agricultural liquid storage\u003c\/li\u003e\n\u003cli\u003ePotable and non-potable water systems\u003c\/li\u003e\n\u003cli\u003eIBC and tank replacement covers\u003c\/li\u003e\n\u003cli\u003eSystems requiring pressure equalisation without contamination risk\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705883975973,"sku":"DP8146001","price":33.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/7ef9428ffbd7f293d2b474e8b3667192.jpg?v=1788097886"},{"product_id":"8-vented-tank-lid-250mm-diameter-with-ergonomic-handle","title":"8\" Vented Tank Lid, 250mm Diameter with Ergonomic Handle","description":"\u003cp\u003e\u003cstrong\u003eThreaded vented tank lid in durable polypropylene for 250mm (8\") diameter tanks, preventing pressure build-up and spills during use.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis vented lid threads securely onto a 210mm diameter collar ring, creating a watertight seal while allowing air circulation. The integrated vent system enables pressure to escape safely and air to enter, eliminating the glugging effect that occurs when emptying the tank. Lightweight yet robust polypropylene construction combines durability with ease of handling.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBuilt-in vents allow pressure relief and air ingress to prevent tank glugging\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for quick and easy opening and closing\u003c\/li\u003e\n\u003cli\u003eThreaded connection for secure, watertight seal\u003c\/li\u003e\n\u003cli\u003eLightweight polypropylene construction\u003c\/li\u003e\n\u003cli\u003eExtends tank longevity by preventing pressure-related damage\u003c\/li\u003e\n\u003cli\u003eReduces spillage risk during filling and emptying operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTank diameter: 250mm (8\")\u003c\/li\u003e\n\u003cli\u003eThread diameter: 210mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003cli\u003eVented design with relief system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage and distribution tanks\u003c\/li\u003e\n\u003cli\u003eBulk liquid containment systems\u003c\/li\u003e\n\u003cli\u003eMobile tank installations\u003c\/li\u003e\n\u003cli\u003eIndustrial and agricultural storage\u003c\/li\u003e\n\u003cli\u003eSystems requiring pressure equalisation during transfer operations\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884008741,"sku":"DP8146002","price":29.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/59727e9650909a04066d14ef08598e39.jpg?v=1788097891"},{"product_id":"polypropylene-tank-lid-350mm-with-ergonomic-handle","title":"Polypropylene Tank Lid 350mm with Ergonomic Handle","description":"\u003cp\u003e\u003cstrong\u003eThreaded polypropylene lid designed for secure, watertight closure on 355-series water storage tanks.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis lightweight tank lid features a 350mm diameter body with a 313mm diameter female thread for direct installation onto compatible tank collar systems. The ergonomic handle enables swift opening and closing whilst maintaining a reliable seal, making it ideal for frequent access applications.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable polypropylene construction\u003c\/li\u003e\n\u003cli\u003eLightweight design for easy handling\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for quick open\/close operation\u003c\/li\u003e\n\u003cli\u003eFemale thread connection (no vent hole)\u003c\/li\u003e\n\u003cli\u003e350mm outer diameter\u003c\/li\u003e\n\u003cli\u003e29mm depth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBody diameter: 350mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 313mm\u003c\/li\u003e\n\u003cli\u003eDepth: 29mm\u003c\/li\u003e\n\u003cli\u003eMaterial: polypropylene\u003c\/li\u003e\n\u003cli\u003eThread type: female\u003c\/li\u003e\n\u003cli\u003eVent provision: none\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage tank access and sealing\u003c\/li\u003e\n\u003cli\u003eIndustrial fluid containment\u003c\/li\u003e\n\u003cli\u003eAgricultural water systems\u003c\/li\u003e\n\u003cli\u003eCommercial tank installations\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884041509,"sku":"DP8152000","price":37.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/1d579c06c57c9fd9fa8ab4114f28770f.jpg?v=1788097897"},{"product_id":"12-threaded-tank-lid-with-non-return-valve-350mm-polypropylene","title":"12\" Threaded Tank Lid with Non-Return Valve – 350mm Polypropylene","description":"\u003cp\u003e\u003cstrong\u003eThreaded polypropylene tank lid featuring an integrated non-return valve for sealed water tank systems.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 12-inch tank lid threads securely into a compatible lid ring collar, creating a watertight seal. The built-in non-return valve permits air circulation during filling and prevents external contaminants from entering the tank. Lightweight polypropylene construction ensures durability without excess weight.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIntegrated non-return valve allows air escape without contamination ingress\u003c\/li\u003e\n\u003cli\u003eDurable, lightweight polypropylene construction\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for quick, tool-free opening and closing\u003c\/li\u003e\n\u003cli\u003eSecure threaded connection for watertight seal\u003c\/li\u003e\n\u003cli\u003eCompact 29mm depth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOverall diameter: 350mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 313mm\u003c\/li\u003e\n\u003cli\u003eDepth: 29mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage tank systems\u003c\/li\u003e\n\u003cli\u003eAbove-ground and below-ground tank installations\u003c\/li\u003e\n\u003cli\u003eAgricultural and industrial water storage\u003c\/li\u003e\n\u003cli\u003ePotable water containment\u003c\/li\u003e\n\u003cli\u003eSystems requiring pressurisation or venting control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884074277,"sku":"DP8152001","price":47.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/4e75c25d667af218652e8778fd9a7992.jpg?v=1788097902"},{"product_id":"12-vented-tank-lid-350mm-diameter-2-vents-female-thread","title":"12\" Vented Tank Lid, 350mm Diameter, 2 Vents, Female Thread","description":"\u003cp\u003e\u003cstrong\u003eThreaded vented tank lid designed to prevent pressure buildup and eliminate glugging during tank operations.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 12\" diameter vented lid features dual integrated vents that allow air ingress and pressure release, preventing the characteristic gurgling sound when emptying tanks and reducing spill risk. Constructed from durable, lightweight polypropylene with a female thread connection, it secures via a threaded collar system and incorporates an ergonomic handle for quick access.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo integrated vents for balanced air exchange and pressure relief\u003c\/li\u003e\n\u003cli\u003ePrevents tank glugging during emptying and filling cycles\u003c\/li\u003e\n\u003cli\u003eLightweight polypropylene construction for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eErgonomic handle design for easy one-handed operation\u003c\/li\u003e\n\u003cli\u003eFemale thread connection for secure, watertight fit\u003c\/li\u003e\n\u003cli\u003eExtends tank service life by managing internal pressure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTank diameter: 350mm (12\")\u003c\/li\u003e\n\u003cli\u003eThread diameter: 313mm\u003c\/li\u003e\n\u003cli\u003eDepth: 29mm\u003c\/li\u003e\n\u003cli\u003eThread type: Female\u003c\/li\u003e\n\u003cli\u003eVent configuration: 2 vents\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage and distribution systems\u003c\/li\u003e\n\u003cli\u003eBulk liquid container management\u003c\/li\u003e\n\u003cli\u003eAgricultural and industrial tank operations\u003c\/li\u003e\n\u003cli\u003ePortable water and fluid storage units\u003c\/li\u003e\n\u003cli\u003eSystems requiring pressure equalisation during transfer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884107045,"sku":"DP8152002","price":41.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/40a02c99ee68cb5789c11878e91cdb89.jpg?v=1788097908"},{"product_id":"12-vented-tank-lid-with-4-vents-350mm-diameter","title":"12\" Vented Tank Lid with 4 Vents – 350mm Diameter","description":"\u003cp\u003e\u003cstrong\u003eThreaded polypropylene tank lid with four integrated vents for pressure relief and air circulation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 350mm diameter lid threads securely into a 355 series collar to create a watertight seal. The four vents allow air to enter the tank whilst permitting pressure to escape, eliminating glugging when emptying and reducing spillage risk. Ergonomic handle design enables quick and easy opening and closing, whilst the lightweight polypropylene construction ensures durability and longevity.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour integrated vents for pressure relief and air intake\u003c\/li\u003e\n\u003cli\u003eFemale thread connection for secure fit\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for quick access\u003c\/li\u003e\n\u003cli\u003eLightweight and durable polypropylene\u003c\/li\u003e\n\u003cli\u003ePrevents tank glugging and spills during drainage\u003c\/li\u003e\n\u003cli\u003eExtends tank lifespan by managing internal pressure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOverall diameter: 350mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 313mm\u003c\/li\u003e\n\u003cli\u003eDepth: 29mm\u003c\/li\u003e\n\u003cli\u003eThread type: Female\u003c\/li\u003e\n\u003cli\u003eVent configuration: 4 vents\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage and distribution tanks\u003c\/li\u003e\n\u003cli\u003eChemical and liquid containment systems\u003c\/li\u003e\n\u003cli\u003eAgricultural and horticultural storage\u003c\/li\u003e\n\u003cli\u003eIndustrial fluid management\u003c\/li\u003e\n\u003cli\u003eEmergency and portable water reserves\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884139813,"sku":"DP8152003","price":37.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/3ffd9c82071f5b5d3409b19e9a315467.jpg?v=1788097914"},{"product_id":"12-vented-tank-lid-with-single-vent-350mm-diameter","title":"12\" Vented Tank Lid with Single Vent – 350mm Diameter","description":"\u003cp\u003e\u003cstrong\u003eVented threaded tank lid designed to fit 355-series tanks, featuring a single air vent for pressure relief and air intake.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis polypropylene lid threads securely onto compatible tank collar rings, creating a watertight seal. The integrated vent allows air to enter during tank emptying, eliminating the suction effect that causes tap glugging and potential spills. The ergonomic handle enables quick, easy opening and closing.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSingle integrated vent for pressure equalisation\u003c\/li\u003e\n\u003cli\u003eFemale threaded connection for secure fit\u003c\/li\u003e\n\u003cli\u003eLightweight, durable polypropylene construction\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for one-handed operation\u003c\/li\u003e\n\u003cli\u003eWatertight seal when properly secured\u003c\/li\u003e\n\u003cli\u003ePrevents tank glug during emptying\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOuter diameter: 350mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 313mm\u003c\/li\u003e\n\u003cli\u003eDepth: 29mm\u003c\/li\u003e\n\u003cli\u003eVent configuration: 1 vent\u003c\/li\u003e\n\u003cli\u003eThread type: Female\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater tank systems requiring pressure relief\u003c\/li\u003e\n\u003cli\u003ePortable water storage and distribution\u003c\/li\u003e\n\u003cli\u003eTank systems where glug-free emptying is required\u003c\/li\u003e\n\u003cli\u003eAgricultural and mobile water applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884172581,"sku":"DP8152004","price":39.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/533066a44cc502d2162e04eab0bbc3ff.jpg?v=1788097920"},{"product_id":"polypropylene-tank-lid-450mm-diameter-16-threaded","title":"Polypropylene Tank Lid 450mm Diameter – 16\" Threaded","description":"\u003cp\u003e\u003cstrong\u003eLightweight polypropylene threaded tank lid with ergonomic handle, designed for secure 450mm diameter tank applications.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis durable tank lid features female thread connection for a watertight seal. The ergonomic handle enables quick and easy opening and closing, making routine tank access straightforward. Constructed from lightweight polypropylene, it combines durability with practical handling.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable and lightweight polypropylene construction\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for quick and easy opening and closing\u003c\/li\u003e\n\u003cli\u003eFemale thread connection – no vent\u003c\/li\u003e\n\u003cli\u003e450mm outer diameter\u003c\/li\u003e\n\u003cli\u003e408mm thread diameter\u003c\/li\u003e\n\u003cli\u003e23mm depth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003cli\u003eOuter diameter: 450mm (16\")\u003c\/li\u003e\n\u003cli\u003eThread diameter: 408mm\u003c\/li\u003e\n\u003cli\u003eDepth: 23mm\u003c\/li\u003e\n\u003cli\u003eConnection type: Female threaded\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage tanks\u003c\/li\u003e\n\u003cli\u003eIndustrial liquid storage containers\u003c\/li\u003e\n\u003cli\u003eAgricultural and horticultural tanks\u003c\/li\u003e\n\u003cli\u003eOutdoor storage vessel applications\u003c\/li\u003e\n\u003cli\u003eMaintenance and access covers for tank systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884205349,"sku":"DP8158000","price":46.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/19a80f1a446ba65d8f4dcefdb7222ed7.jpg?v=1788097925"},{"product_id":"16-vented-tank-lid-with-2-vents-450mm-diameter","title":"16\" Vented Tank Lid with 2 Vents – 450mm Diameter","description":"\u003cp\u003e\u003cstrong\u003eThreaded polypropylene vented tank lid with dual air vents and ergonomic handle for 450mm diameter tanks.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 16-inch vented lid threads securely into standard 408mm diameter tank collar fittings, creating a watertight seal whilst allowing air circulation. The dual vents enable pressure to escape during emptying and allow air infill during filling, eliminating tank glugging and preventing spills. The lightweight polypropylene construction offers durability with quick, easy access via an ergonomic handle.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual integrated vents prevent pressure build-up and tank glugging\u003c\/li\u003e\n\u003cli\u003eFemale thread design for secure fitting to tank collars\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for rapid opening and closing\u003c\/li\u003e\n\u003cli\u003eDurable, lightweight polypropylene material\u003c\/li\u003e\n\u003cli\u003eCreates watertight seal when closed\u003c\/li\u003e\n\u003cli\u003eExtends tank longevity by reducing internal stress\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDiameter: 450mm (16 inches)\u003c\/li\u003e\n\u003cli\u003eThread diameter: 408mm\u003c\/li\u003e\n\u003cli\u003eDepth: 23mm\u003c\/li\u003e\n\u003cli\u003eThread type: Female\u003c\/li\u003e\n\u003cli\u003eVent configuration: 2 vents\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage and distribution tanks\u003c\/li\u003e\n\u003cli\u003eAgricultural and horticultural fluid containment\u003c\/li\u003e\n\u003cli\u003eIndustrial liquid storage systems\u003c\/li\u003e\n\u003cli\u003eRainwater harvesting installations\u003c\/li\u003e\n\u003cli\u003eChemical and waste containment vessels\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884238117,"sku":"DP8158002","price":52.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/721acba85ff8b8df0fa11375af87df39.jpg?v=1788097931"},{"product_id":"16-vented-tank-lid-with-4-vents-450mm-diameter","title":"16\" Vented Tank Lid with 4 Vents – 450mm Diameter","description":"\u003cp\u003e\u003cstrong\u003eThreaded polypropylene vented tank lid with four air vents and ergonomic handle, designed for 450mm diameter tanks.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis vented lid threads securely onto a 408mm diameter tank collar to create a watertight seal whilst allowing air circulation. The four vents permit pressure to escape during emptying, eliminating tank glugging and reducing spillage risk. The lightweight construction and user-friendly handle make opening and closing quick and convenient.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour built-in vents allow air ingress and pressure relief\u003c\/li\u003e\n\u003cli\u003ePrevents tank glugging during filling and emptying operations\u003c\/li\u003e\n\u003cli\u003eDurable, lightweight polypropylene material\u003c\/li\u003e\n\u003cli\u003eErgonomic handle for easy opening and closing\u003c\/li\u003e\n\u003cli\u003eFemale thread connection for secure fitting\u003c\/li\u003e\n\u003cli\u003eWatertight seal when properly installed\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTank diameter: 450mm (16\")\u003c\/li\u003e\n\u003cli\u003eThread diameter: 408mm\u003c\/li\u003e\n\u003cli\u003eDepth: 23mm\u003c\/li\u003e\n\u003cli\u003eThread type: Female\u003c\/li\u003e\n\u003cli\u003eVent count: 4\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater storage tanks requiring pressure ventilation\u003c\/li\u003e\n\u003cli\u003eFuel and diesel tank systems\u003c\/li\u003e\n\u003cli\u003eChemical and liquid storage vessels\u003c\/li\u003e\n\u003cli\u003eAgricultural and horticultural applications\u003c\/li\u003e\n\u003cli\u003eIndustrial liquid containment solutions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884270885,"sku":"DP8158003","price":56.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/fff53cd0186b55405ee813e8d13a446f.jpg?v=1788097937"},{"product_id":"450mm-vented-tank-lid-1-vent-polypropylene-16-series","title":"450mm Vented Tank Lid, 1 Vent, Polypropylene – 16\" Series","description":"\u003cp\u003e\u003cstrong\u003ePolypropylene vented tank lid engineered for safe pressure equalisation in 450mm-diameter storage vessels.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis single-vent tank lid is designed to prevent vacuum formation and allow safe gas exchange during tank filling and emptying cycles. The robust polypropylene construction resists chemical exposure and weathering, making it suitable for long-term outdoor or industrial use.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e450mm outer diameter with 408mm thread diameter\u003c\/li\u003e\n\u003cli\u003eSingle female-thread vent outlet for atmospheric exchange\u003c\/li\u003e\n\u003cli\u003e23mm depth for secure fitment and seal integrity\u003c\/li\u003e\n\u003cli\u003ePolypropylene construction offering chemical and UV resistance\u003c\/li\u003e\n\u003cli\u003eDesigned for safe tank pressurisation control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTank diameter: 450mm\u003c\/li\u003e\n\u003cli\u003eThread diameter: 408mm\u003c\/li\u003e\n\u003cli\u003eDepth: 23mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Polypropylene\u003c\/li\u003e\n\u003cli\u003eVent configuration: Single outlet\u003c\/li\u003e\n\u003cli\u003eThread type: Female\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustrial liquid storage and transport tanks\u003c\/li\u003e\n\u003cli\u003eAgricultural chemical containment vessels\u003c\/li\u003e\n\u003cli\u003eWater and fuel storage systems\u003c\/li\u003e\n\u003cli\u003eHazardous fluid handling and compliance\u003c\/li\u003e\n\u003cli\u003eMobile tank and container systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"safety supplies","offers":[{"title":"Default","offer_id":53705884303653,"sku":"DP8158005","price":47.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/1932\/9829\/files\/1e67a3cb47815a52f01213c1c498ea0e.jpg?v=1788097943"}],"url":"https:\/\/safetysuppliesco.co.uk\/collections\/tank-lids.oembed","provider":"Safety Supplies Co","version":"1.0","type":"link"}