"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.