Image 1002-Series Hammer Union Markets Energy / Oil & Gas Jump to Section Product Options Related Products Product Options Part Number Size Material HU1002100 1" Forged Steel HU1002200 2" Forged Steel HU1002300 3" Forged Steel HU1002400 4" Forged Steel Related Products Image Dixon Complete Assembly Frac Fitting Image Forged Steel Gate Valve Image 1502-Series Hammer Union Image 206-Series Hammer Union Image King Crimp® Style Threaded End Combination Nipple Image Vent-Lock® Safety Cam & Groove Type C Coupler x Hose Shank