Air Hose Fittings + Couplers | Northern Tool
Versatile Air Hose Fittings, Couplers + Plugs. No matter what type of air hose you use, you can find the right air hose fittings, couplers, and plugs from Northern Tool. We carry a huge selection of products to suit any style, material type, or size. The right fittings and couplers ensure a tight seal and a strong connection.