Sealey Speedfit® Stem Adaptor 15mm x 1/2"BSP - Pack of 2 Features: Converts coupling to male thread. Strong Acetal Copolymer Stem Adaptor Ø15mm x 1/2"BSP. Can also be used for drinking water movement. Technical Details: • Install your own workshop compressed air ring main quickly, easily and competitively with the CAS system of fast fit compressed air fittings. • Can also be used for drinking water movement. • Converts coupling to male thread. • Strong Acetal Copolymer Stem Adaptor Ø15mm x 1/2"BSP. • Model No. CAS15STA • Model No. CAS15STA Additional Information: • COMPREHENSIVE - One of a comprehensive range of high quality components for the John Guest Speedfit® Air Supply Ring Main System. • QUICK - Install your own workshop compressed air ring main quickly, easily and competitively with the CAS system of fast fit compressed air fittings. • VERSATILE - Can also be used for drinking water movement. • CONNECTIVITY - Converts coupling to male thread. • DURABLE - Strong Acetal