Ball and socket quick coupling 1. material:galvanized carbon steel 2. size:2",3",3-1/2",4",6",8" 3. connected with ... countryCODE DIMENTIONHA-BS20050MMHA-BS30076MMHA-BS35089MMHA-BS400104MMHA-BS600159MMHA-BS800194MM 1.Name: Ball and socket quick coupling2.Material: galvanized steel or S/S3.parts ... tail, lever ring and rubber ring4.size: 2", 3", 3-1/2",4",6",8"5.advantage: safe, fast, easy, flexible6 ...