{"product_id":"wydale-plastics-transit-custom-vwt7-underslung-water-tank-31l","title":"Transit Custom - (2023 onwards) \/ VWT7 - (2025 onwards) Underslung Water Tank 31L","description":"\u003cp\u003e\u003cstrong\u003e⚠️ Please Note:\u003c\/strong\u003e A vehicle-specific fitting kit is required for installation. For the Ford Transit Custom (2023 onwards) and VW Transporter T7 (2025 onwards), you will need the \u003cstrong\u003e31L Underslung Tank Fit Kit\u003c\/strong\u003e, available separately on our store.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/trekkashop.com\/products\/wydale-plastics-transit-custom-vwt7-31l-underslung-tank-fit-kit?_pos=1\u0026amp;_sid=f49ffe6ca\u0026amp;_ss=r\" title=\"water tank link\"\u003ehttps:\/\/trekkashop.com\/products\/wydale-plastics-transit-custom-vwt7-31l-underslung-tank-fit-kit?_pos=1\u0026amp;_sid=f49ffe6ca\u0026amp;_ss=r\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThe Wydale Plastics WP-T31UBK5 is a purpose-designed 31-litre underslung fresh water tank engineered specifically for the latest Ford Transit Custom (V710, 2023 onwards) and Volkswagen Transporter T7 platforms. Mounted beneath the vehicle, it provides valuable water storage capacity without occupying interior living space, making it an ideal solution for campervan conversions, day vans, and leisure vehicle builds.\u003c\/p\u003e\n\u003cp\u003eManufactured in the UK from WRAS-approved polyethylene, the tank is designed for potable water use and features multiple BSP threaded connections for filling, venting, draining, and water pump installation. The moulded design also includes a dedicated recess for a water level sensor, simplifying integration into modern campervan electrical systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e31-litre fresh water capacity\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for:\n\u003cul\u003e\n\u003cli\u003eFord Transit Custom V710 (2023 onwards)\u003c\/li\u003e\n\u003cli\u003eVolkswagen Transporter T7 (2025 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnderslung chassis-mounted installation\u003c\/li\u003e\n\u003cli\u003eWRAS-approved food-grade polyethylene construction\u003c\/li\u003e\n\u003cli\u003eSpace-saving design preserves interior storage\u003c\/li\u003e\n\u003cli\u003eIntegrated level sensor recess\u003c\/li\u003e\n\u003cli\u003eMultiple BSP threaded ports\u003c\/li\u003e\n\u003cli\u003eSuitable for potable water systems\u003c\/li\u003e\n\u003cli\u003eDurable black rotationally moulded construction\u003c\/li\u003e\n\u003cli\u003eIdeal for campervan and van conversion projects\u003c\/li\u003e\n\u003cli\u003eUK manufactured by Wydale Plastics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eWydale Plastics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWP-T31UBK5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e31 Litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eTransit Custom \/ VW T7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eWRAS Approved Polyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 4.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall Thickness\u003c\/td\u003e\n\u003ctd\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003eApprox. 1195 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Width\u003c\/td\u003e\n\u003ctd\u003eApprox. 265 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003eApprox. 125 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccess Lid\u003c\/td\u003e\n\u003ctd\u003e5\" Internal Lid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eMultiple ½\" BSP Ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLevel Sensor Recess\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Position\u003c\/td\u003e\n\u003ctd\u003eUnderslung Offside Chassis Mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFitting Kit Required\u003c\/h2\u003e\n\u003cp\u003eFor the following vehicles, a dedicated fitting kit must be purchased separately to complete the installation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFord Transit Custom (2023 onwards)\u003c\/strong\u003e — 31L Underslung Tank Fit Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVW Transporter T7 (2025 onwards)\u003c\/strong\u003e — 31L Underslung Tank Fit Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTank Connections\u003c\/h2\u003e\n\u003cp\u003eThe tank incorporates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e½\" BSP inlet\/outlet ports\u003c\/li\u003e\n\u003cli\u003eDedicated vent connection\u003c\/li\u003e\n\u003cli\u003eDrain capability\u003c\/li\u003e\n\u003cli\u003eRecess for level sensor installation\u003c\/li\u003e\n\u003cli\u003eLarge 5-inch inspection\/access lid\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese features allow straightforward integration with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12V water pumps\u003c\/li\u003e\n\u003cli\u003eFill points\u003c\/li\u003e\n\u003cli\u003eVent systems\u003c\/li\u003e\n\u003cli\u003eWater level monitoring systems\u003c\/li\u003e\n\u003cli\u003eCampervan plumbing installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBenefits of an Underslung Tank\u003c\/h2\u003e\n\u003ch3\u003eMaximises Interior Space\u003c\/h3\u003e\n\u003cp\u003eBy mounting beneath the vehicle, the tank frees up valuable space inside the campervan for storage, furniture, batteries, or electrical equipment.\u003c\/p\u003e\n\u003ch3\u003eLower Centre of Gravity\u003c\/h3\u003e\n\u003cp\u003ePositioning water weight underneath the vehicle helps improve weight distribution compared with internal tanks.\u003c\/p\u003e\n\u003ch3\u003eIncreased Living Area\u003c\/h3\u003e\n\u003cp\u003eNo need to dedicate cupboard or furniture space to water storage, allowing for more efficient campervan layouts.\u003c\/p\u003e\n\u003ch3\u003eProfessional Conversion Finish\u003c\/h3\u003e\n\u003cp\u003ePurpose-built underslung tanks provide a cleaner and more factory-style installation than portable water containers.\u003c\/p\u003e\n\u003ch2\u003eSuitable Vehicles\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFord Transit Custom V710 (2023+)\u003c\/li\u003e\n\u003cli\u003eVolkswagen Transporter T7 (2025+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCampervan conversions\u003c\/li\u003e\n\u003cli\u003eFord Transit Custom conversions\u003c\/li\u003e\n\u003cli\u003eVolkswagen Transporter T7 conversions\u003c\/li\u003e\n\u003cli\u003eDay vans\u003c\/li\u003e\n\u003cli\u003eWeekend campers\u003c\/li\u003e\n\u003cli\u003eOff-grid van builds\u003c\/li\u003e\n\u003cli\u003eLeisure vehicle fresh water storage systems\u003c\/li\u003e\n\u003cli\u003eProfessional conversion projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose the Underslung Tank?\u003c\/h2\u003e\n\u003cp\u003eThe Wydale Plastics water tank offers a vehicle-specific, professionally engineered fresh water storage solution for the latest Transit Custom and VW T7 platforms. With a 31-litre capacity, WRAS-approved construction, integrated sensor provision, and a compact underslung design, it is an excellent choice for campervan builders seeking to maximise interior space while maintaining a reliable onboard water supply.\u003c\/p\u003e","brand":"Wydale","offers":[{"title":"Default Title","offer_id":53221087314186,"sku":"WP-T31UBK5","price":125.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/2615\/9626\/files\/image_117c7e58-481e-406f-ac8e-09fb70ea3120.png?v=1782066100","url":"https:\/\/trekkashop.com\/products\/wydale-plastics-transit-custom-vwt7-underslung-water-tank-31l","provider":"Trekkashop","version":"1.0","type":"link"}