Image 200-Series Hammer Union Markets Hydraulic Fracturing: Low Pressure Systems Jump to Section Product Options Related Products Product Options Part Number Size Material HU200100 1" Forged Steel HU200150 1-1/2" Forged Steel HU200200 2" Forged Steel HU200200BW 2" Forged Steel HU200250 2-1/2" Forged Steel HU200300 3" Forged Steel HU200400 4" Forged Steel HU200600 6" Forged Steel Related Products Image Dixon Complete Assembly Frac Fitting Image Dixon MannTek Safety Breakaway Coupling Industrial Female NPT x Female NPT Image Dixon Two-Piece Hammer Union Nut Image Forged Steel Gate Valve Image 206-Series Hammer Union Image King Crimp® Style Threaded End Combination Nipple