... sizes 4.Fast delivery Product:Filter for check valve,stainless sleeve filterSpecifications:1.Stainless sleeve:302, ... CEBrief description about our company: Zhejiang LvFeng Valve Co.,Ltd is a large-scale manufacturer, ... .The production contains brass manifold,ball valve,filter,check valve,radiator valve,brass fitting,overlap-welded and butt- ... hours! Hot-sale filter for check valve,stainless sleeve filter