Image 206-Series Hammer Union Markets Steel Refining, Steel Melting, Hydraulic Fracturing: Low Pressure Systems Jump to Section Product Options Related Products Product Options Part Number Size Material HU206100 1" Forged Steel HU206150 1-1/2" Forged Steel HU206200 2" Forged Steel HU206250 2-1/2" Forged Steel HU206300 3" Forged Steel HU206400 4" Forged Steel HU206600 6" Forged Steel HU206800 8" Forged Steel Related Products Image Dixon Complete Assembly Frac Fitting Image Dixon Male Frac Fitting with Nut Image Dixon MannTek Safety Breakaway Coupling Industrial Female NPT x Female NPT Image Dixon One-Piece Hammer Union Nut Image Dixon Two-Piece Hammer Union Nut Image Forged Steel Gate Valve Image 200-Series Hammer Union Image King Crimp® Style Short Combination Nipple Threaded End Image One-Piece Flange x Hammer Union 45° Elbow Adapter Image One-Piece Flange Adapters