JG Watermark Tube Insert 12mm - Bag of 50 The John Guest Speedfit RV Range is designed to comply with Australian Standards and is WaterMark certified. This range supports a maximum working temperature of 80°C at 1000 kPa pressure. Features Bag of 50 x 12mm tube inserts Suitable for use with plastic and copper pipe Push-fit design for quick and easy installation Designed, manufactured and assembled in the UK by John Guest Speedfit Simple installation: push fitting onto pipe, twist nut clockwise to lock Removable: unlock nut, push collet towards fitting body, and pull pipe to release Required for use with all plastic pipes to ensure seal and support Reduces installation time by approximately 40% compared to traditional methods No hot works required, suitable for confined spaces Part number: 800-02223.Tsm12