The Power Products Male 90° 5/8" x 3/8" Nylon Tubing Brass Elbow makes it easier to install in tight spaces and the brass fittings provide additional durability and strength to the connection. The brass material is corrosion resistant and has good thermal conductivity, making it a reliable and long lasting choice for your installation. This elbow is also designed to provide a smoother flow than standard compression fittings with inserts. FleetPride is your First Click in Heavy Duty®.