InstantAir type pneumatic quick release couplings from FT Pro, PCL, Kee and Parker provide fast, reliable connection for compressed air systems. They are available in mild steel zinc plated, brass chrome plated and aluminium, with nitrile seals. Maximum working pressures range from 17 bar to 75 bar, depending on the brand, and both male and female BSP threads are available in 1/4”, 3/8”, 1/2” and 3/4” sizes.