Jiangyin Yangfan Ship Trading Co.,Ltd is one of the best lock type air hose couplings manufacturers and suppliers in China, you can get lock type air hose couplings free sample and buy discount products from our factory.The quick lock coupling feature makes it especially efficient and economical for every kind of air and pneumatic service. Press the two fittings together, give a quarter turn to one, and the connection is made. Made of cast brass, with hose ends on both sides. Furnished in sets only.CODEHose  sizeCODEHose  sizeNom.mminchNom.mminch351011 129 123/8 1/2351013 1419 253/4 1