... 3.scientific design,full sizes 4.Fast delivery Filter for check valve,stainless sleeve filterSpecifications:1.Stainless sleeve:302,304,etc2 ... and accessories.The production contains brass manifold,ball valve,filter,check valve,radiator valve,brass fitting,overlap-welded and butt-welded PE ... service to demestic and foreign partners are always LvFeng's target.Any question is appreciated.We will be ready ...