Advantec 352600 All-Stainless Steel Filter Holder for 47 mm Membranes; 500 mL | eBay
In-line filter holder type KS 47 F for 47mm Ø membranes, 304 stainless steel, PTFE gasket and silicon O-ring, inlet and outlet sanitary to 8mm barb - Lab Club
Polysulfone Filter Holders, 47 mm, Advantec | VWR
Advantec 314100 Glass Sterility Test Filter Holder, 47mm Dia; 300 mL Capacity from Cole-Parmer