... scientific design,full sizes 4.Fast delivery Product:Filter for check valve,stainless sleeve filterSpecifications:1.Stainless sleeve:302,304,etc2.Size:3/8''~4 ... parts and accessories.The production contains brass manifold,ball valve,filter,check valve,radiator valve,brass fitting,overlap-welded and butt-welded PE( ... is at your service in 24 hours! Hot-sale filter for check valve,stainless sleeve filter