made from durable material of stainless steel rust proof, waterproof, corrosion-resistant, strong, durable and long lasting use adopts an open inner and outter ring structure and fastened with bolts smooth surface, torsion-resistant and pressure-resistant, tightly locked and large adjustment range provides an excellent seal with a variety of hose materials, effectively solves the problem of liquid and gas leakage of the hose easy to use. just loosen or tighten the screw of hose clips by by a screwdriver to adjust the size, attach hoses to the fitting tightly
