‹› Image Air King® 4-Lug Female NPT End Markets Energy / Oil & Gas, Food & Beverage / Pharmaceutical, Construction, Maintenance Repair Operations (MRO), Mining, Steel Processing Jump to Section Product Options Related Products Product Options Hide lower priority columns Part Number All AM18AM23AM28Size All 1-1/4"1-1/2"2"Seal All RubberMaterial All Iron AM18 1-1/4" Rubber Iron AM23 1-1/2" Rubber Iron AM28 2" Rubber Iron Related Products Image Air King® 4-Lug Hose End Image Air King® 4-Lug Washer Image Boss® Clamp 4 Bolt Type, 2 Gripping Fingers Image Standard Safety Clip