F1002 Rapid Air FastPipe 3/4" Union Connector For Use W/ Fastpipe Airpipe System This union is used with 3/4" Fastpipe solid aluminum tubing for easy connection in your airpipe system. Rapid Air products provide superior air quality. Not only do they cool hot compressed air quickly for better filter performance, but there is also no corrosion in the pipe and fittings, meaning longer tool life. The O ring seals ensure a leak-free system with no gluing, threading or soldering. Unions allow you to expand or modify the system with ease. Specifications: 3/4" Union For Use With Rapid Air Aluminum Piping System Modular Aluminum Compressed Air Piping