John Guest 12mm to 10mm Reducing Connector. This John Guest fitting allows you to reduce 12mm red or blue pipe down to 10mm pipe. Features and Benefits:12mm to 10mm Reducing Straight ConnectorSuits 12mm OD plastic pipe on endReduces to 10mm OD plastic pipe on...

John Guest 12mm x 1/2" Female BSP Adaptor. This John Guest fitting screws onto 1/2" BSP male fittings and allows push on 12mm red or blue tubing to push in. Features and Benefits:Fits most standard taps and water pumpsGenuine John Guest BrandSuits all 12mm...

John Guest 12mm Tempering Valve. Designed for accurately regulate the temperature of the water activities such as showering, bathing and hand washing. Also reduces the risk of scalding. Ideal for Caravan and RV plumbing. Features and Benefits:Genuine John Guest BrandFast installation timesLightweight and easy...