Product Information Seal: FKM O-ring Seat: Metal-to-Metal Hard Seat Thread: NPT Select a Product Part NumberStyleMaterialThread SizeOrifice MFS102T Design Handle316 Stainless Steel1/4"-180.172" MFS404T Design Handle316 Stainless Steel1/2"-140.187" MFS101T Design Handle316 Stainless Steel1/8"-270.172" MFC101T Design HandleZinc-Nickel Plated Steel1/8"-270.172" MFC102T Design HandleZinc-Nickel Plated Steel1/4"-180.172" MFB101Knurled Knob HandleBrass1/8"-270.172" MFB102Knurled Knob HandleBrass1/4"-180.172" MFC404T Design HandleZinc-Nickel Plated Steel1/2"-140.187"