Product Information Thread: NPT Select a Product Part NumberMaterialSealSize BGF51BrassBrass Seat1-1/4" (32mm) BGF61BrassBrass Seat1-1/2" (40mm) BGF81BrassBrass Seat2" (50mm) BGF26BrassBrass Seat3/4" (20mm) BGF36BrassBrass Seat1" (25mm) GF26-1Plated Iron/SteelPositive Metal-to-Polymer Seal1/2" x 3/4" GF61Plated IronPositive Metal-to-Polymer Seal1-1/2" (40mm) GF36Plated Iron/SteelPositive Metal-to-Polymer Seal1" (25mm) RGF81316 Stainless SteelPositive Metal-to-Polymer Seal2" (50mm) GF51Plated IronPositive Metal-to-Polymer Seal1-1/4" (32mm) RGF51316 Stainless SteelPositive Metal-to-Polymer Seal1-1/4" (32mm) GF26Plated Iron/SteelPositive Metal-to-Polymer Seal3/4" (20mm) GF3Plated Iron/SteelCopper Seat3/8" (9.5mm) GF1Plated SteelCopper Seat1/4" (6mm) GF111Plated IronPositive Metal-to-Polymer Seal3" (75mm) RGF61316 Stainless SteelPositive Metal-to-Polymer Seal1-1/2" (40mm) GF96Plated IronPositive Metal-to-Polymer Seal2-1/2" (65mm) RGF26316 Stainless SteelPositive Metal-to-Polymer Seal3/4" (20mm) RGF36316 Stainless SteelPositive Metal-to-Polymer Seal1" (25mm) GF81Plated IronPositive Metal-to-Polymer Seal2" (50mm) GF141Plated IronPositive Metal-to-Polymer Seal4" (100mm) GF6Plated Iron/SteelPositive Metal-to-Polymer Seal1/2" (15mm) GF201Plated IronCopper Seat6" (150mm)