Designed with two extra o-rings, this Superseal pipe insert delivers an enhanced dual-action seal as well as creating a more rigid connection between a John Guest Speedfit pipe and push-fitting. These inserts provide valuable extra support for your pipework, ensuring that pipe ends keep their round shape. Suitable for John Guest Speedfit pipes and fittings only Two extra o-rings provide improved sealing Creates a rigid connection and provides extra support to pipework Suitable for hot and cold water services Can be used on central heating systems Minimum operating temperature of 20C Maximum operating temperature of 105C 12 bar maximum operating pressure at minimum temperature 3 bar maximum operating pressure at maximum temperature 50-year manufacturers guarantee (TandCs apply) Manufactured to BS EN 7291 Parts 1, 2, 3 and S WRAS-approved Standard TSM inserts must be used when connecting to a compression fitting SPECIFICATION A Size 15 mm Brand John Guest Speedfit CE Standard (Tested to EN...) BS 7291, KM 39767. Manufacturer Guarantee 50 Year Manufacturer's Guarantee (TandCs Apply) Max. Pressure @ Max. Temperature 12 bar Max. Pressure @ Min. Temperature 12 bar Maximum Operating Temperature 95 C Minimum Operating Temperature 4 C Model Name Superseal Pack Size 2 Pieces in Pack/Case 2 Pipe Fitting Material Plastic Pipe Fitting Product Type Inserts Pipe Fitting System Push-Fit Product Type Pipe Inserts John Guest Superseal Pipe Insert 15mm (Pack Of 2) in Yellow