# Buy Truma check valve 12 mm? - The Camping Store ## Truma John Guest check valve 12 mm for water system Brands / TRUMA Compact check valve for the Truma water system with 12 mm John Guest connection. Helps keep the water flow moving in one direction in caravan and motorhome installations. ## Prices and stock - **5346850**: € 35,95 incl. VAT — 1 in stock ## Order URL [Truma John Guest check valve 12 mm for water system](https://www.thecampingstore.eu/en/technology/water/truma-john-guest-check-valve-12-mm-for-water-system) ## Alternate URLs - **nl**: [Truma John Guest check valve 12 mm for water system](https://www.thecampingstore.eu/nl/merken/truma/truma-john-guest-terugslagklep-12-mm-voor-watersysteem) - **fr**: [Truma John Guest check valve 12 mm for water system](https://www.thecampingstore.eu/fr/marques/truma/clapet-anti-retour-truma-john-guest-12-mm-pour-systeme-deau) - **en**: [Truma John Guest check valve 12 mm for water system](https://www.thecampingstore.eu/en/brands/truma/truma-john-guest-check-valve-12-mm-for-water-system) - **de**: [Truma John Guest check valve 12 mm for water system](https://www.thecampingstore.eu/de/marken/truma/truma-john-guest-ruckschlagventil-12-mm-fur-wassersystem) ## Images - ![Product image](https://www.thecampingstore.eu/assets/media/1638/conversions/terugslagklep-john-guest-truma-5148-1-optimized.jpg) ## Specifications - **Reference**: 5346850 - **EAN**: 4052816019659 - **Brand**: TRUMA ## Product description ### Check valve for Truma water systems This Truma check valve is a compact water coupling for installations with the John Guest system. You use it in the water system of a caravan or motorhome to allow the water flow to move in one direction only. That makes this part suitable as a replacement part or for maintenance of an existing Truma water installation. This version is intended for applications where a neat, well-fitting coupling within a compact pipe system is important. ### Connection and practical application The check valve is designed for the John Guest system with a 12 mm connection. This means it fits within water lines and setups built with this widely used push-fit system. This type of part is useful in technical water circuits of leisure vehicles, where you want to maintain a reliable flow without unwanted backflow in the line. ### Material and use in caravan or motorhome The housing is made of plastic. This keeps the part lightweight and suitable for use in compact water installations where ease of assembly and a practical installation size matter. The grey version visually matches technical components in the water installation. As a replacement part, this check valve is particularly interesting for owners of a caravan, motorhome or campervan with a Truma water system. ### Key features - Brand: Truma - Product type: check valve for water system - System: John Guest - Connection: 12 mm - Material: plastic - Colour: grey - Reference / MPN: 5346850 - EAN: 4052816019659 ### Suitable for maintenance and replacement If you are looking for a specific technical water part for your camping equipment, this Truma check valve is a targeted choice for replacement within an existing system. Thanks to the combination of the Truma design and John Guest 12 mm coupling, it is intended for recreational use at the campsite, while travelling or on the road with your own vehicle. ## Breadcrumbs - [Brands](https://www.thecampingstore.eu/en/brands) - [TRUMA](https://www.thecampingstore.eu/en/brands/truma) ## Related products - [Travellife deluxe jerrycan with tap 35L white](https://www.thecampingstore.eu/en/technology/water/travellife-deluxe-jerrycan-with-tap-35l-white) - [Thetford filler cap with funnel for cassette toilet SC24/C400/C500](https://www.thecampingstore.eu/en/technology/water/thetford-filler-cap-with-funnel-for-cassette-toilet-sc24c400c500) - [Trigano bent hose tail 12 mm with nut](https://www.thecampingstore.eu/en/technology/water/trigano-bent-hose-tail-12-mm-with-nut) - [Reich straight tank connector 10/12 mm black](https://www.thecampingstore.eu/en/technology/water/reich-straight-tank-connector-1012-mm-black) - [REICH UniQuick 90° elbow connector 12 mm for water system](https://www.thecampingstore.eu/en/technology/water/reich-uniquick-90-elbow-connector-12-mm-for-water-system) ## Shop navigation - 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