... 5gr,7gr,9gr,10gr,12gr,15gr,20gr,25gr,30gr,35gr.... double Copper Filter DrierIt is for refrigerator,freezer,and air conditioning use ... ,R134a,R22,universal type. Both ends cappped or welded with copper tubes,access valves or flare nuts. packing:in common plastic ... bag/vaccum packing. then packed into cartons or drums. double Copper Filter Drier for refrigeration parts