Made to tighter tolerances than other steel pipe fittings, these are also known as instrumentation fittings.

These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.

Distribute air or fluid to multiple locations from a single supply source with these manifolds. They are also known as headers.

Thicker walls make these fittings—sometimes called flareless or bite fittings—withstand about twice as much pressure as standard compression fittings, so they’re good for hydraulic power applications.

The external hex bolt on these fittings allows for easy installation in cramped spaces.

These fittings have two sleeves for extra gripping power. They bite into steel tubing as you tighten the nut to form a strong seal.