... approved 3.scientific design,full sizes 4.Fast delivery Filter for check valve,stainless sleeve filterSpecifications:1.Stainless sleeve:302 ... and accessories.The production contains brass manifold,ball valve,filter,check valve,radiator valve,brass fitting,overlap-welded and ... More than 10 years' constant pursuit for high quality and service makes good reputation for "LvFeng" production. Mutual benefit, ...