Ergogrip® Universal automatic coupling for hoses with 1/2” - 5/8” - 3/4” diameter. Special rubber-covered surface for a perfect grip. Rustproof (no metal parts) and shockproof, it is resistant to the elements, UV rays and very high pressures, up to 40 bar. Features automatic water shut-off valve - inserted at the end of the hose, water flow is stopped when the coupling is disconnected. perfectly watertight tested for 1.5 million \"clicks\" ideal accessory for Confort spray pistols practical Aquastop system