The threads on the tube end of these fittings are Class 3A or 3B and adhere to tighter tolerances than other 37° flared fittings.

The flat face of the fitting connects to a tube adapter so you can slide the tubing and fitting sideways to disconnect in cramped spaces. They are also known zero-clearance fittings. Use them at pressures up to 4,000 psi.

Connect these fittings to lengths of hose. Hose fittings are typically used in high-flow, suction, and hydraulic applications.