1.Stainless Steel Quick Coupling Type B 1" NPT, 2.Size1/2"-4", 3. ... :stainless steel ADAPTOR FEMALE 1.Stainless Steel Quick Coupling Type B 1/2 NPT,2.Size1/2"-4",3. ... Material:stainless steelADAPTOR FEMALEProduct stainless steel quick coupling type B 1/2 NPTSizequick coupling 1/4"-4"Kindquick ... couplings type:A adaptor female, B coupler male, C coupler hose ...