Browse quality refrigeration press fittings at F.W. Webb. Our collection includes copper press and elbow fittings and reducing couplings. Use press fittings to connect pipes in an HVAC/R system at a residence or job site; choose reducing couplings to join a pipe to another that is smaller in diameter. Made in copper, these durable press fittings and couplings can withstand the normal daily operation of an existing system. Use our helpful filters to narrow fittings and couplings by end connection, bend angle, size, and other variables. Explore refrigeration press fittings from trusted maker Rapid Locking Systems (RLS Inc) to find the best match for your HVAC unit.