Black Silicone Coolant Bypass Cap, 1 1/2 inch ID 20708 This size has a 22mm

This size has a 22mm (7/8") ID

Operating pressure rating 14 psi

These 45 degree reducer elbow hoses have a 35mm ID at one end and a 25mm ID at the other end to connect a 1 3/8" OD tube to a 1" OD tube

The 4-ply reinforcement results in a 5mm wall thickness (61mm / 2 3/8" OD) and a working pressure rating over 21 psi (106 psi burst pressure)

5 psi 12 psi 11 psi 10 psi 9

Black Silicone Coolant Bypass Cap, 1 1/2 inch ID 20708 This size has a 22mmThis cap features the same water and coolant compatible silicone rubber formulation as our silicone coolant hoses. It is designed for capping off coolant bypass or vacuum fittings, but it can also be used to protect fittings in storage. This size has a 38mm (1 1 2") ID, 46mm (1 13 16") OD and measures 38mm (1 1 2") Long overall with a 30mm depth. Maximum temperature 392 F (200 C). Operating pressure rating 14 psi. Black silicone rubber only. Sold