2 extra O-Rings provide enhanced sealing Maintains structural integrity of the pipe connection Helps make the pipe more rigid when a side load is applied Suitable for hot and cold water and central heating systems Suitable for Speedfit pipes and fittings only Brand:JOHN GUEST SPEEDFIT LTD Manufacturer Stock Code:STS10 EAN Code:665628057876 Width:22 mm Height:10 mm Diameter:10 mm Weight:0.0007 kg Manufacturer Guarantee:25 years Sub-Category:Pipe Inserts and Liners Colour:WHITE Brand:JG Speedfit Pack Size:50 Certification:WRAS Category:Fittings