Double check valve (Fluid Category 3) Install and demount in seconds without tools Safe flame-free installation, with no hot works, glue or flux Grip & Seal collet with stainless steel teeth and main O-Ring seal Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe Suitable for hot and cold water (not suitable for central heating) Brand:JOHN GUEST SPEEDFIT LTD Manufacturer Stock Code:15DCSV EAN Code:665628040861 Width:122 mm Height:38 mm Diameter:15 mm Weight:0.07 kg Manufacturer Guarantee:1 years Sub-Category:Valves Colour:WHITE Brand:JG Speedfit Pack Size:1 Certification:WRAS Category:Fittings