Description

Chicago couplings, Universal fittings, Crowsfoot couplings, these are the hose couplings that most contractors depend upon daily to safety connect hose to compressed air systems and pneumatic tools.
We offer Chicago couplings in 2-lug and 4-lug styles in plated malleable iron, brass, and 316 stainless steel, as well as Chicago coupling-compatible hose clamps and replacement parts & accessories.

The original quarter-turn claw type hose quick coupling, just press two couplings together firmly and twist.
Connect varying sizes of hose and fittings with ease, all Chicago type hose couplings interchange through 1 inch. Chicago Couplings 1 inch and under have a 2-lug head design that mates with any 2-lug coupling regardless of hose or thread diameter. All couplings over 1 inch have a 4-lug design that interchanges between all 4 lug sizes. If you have a coupling larger than 1 inch with a 2-lug design, it is probably a sandblast coupling or an interchange from overseas. Split one larger hose into two smaller diameter lines with a Chicago Y coupling. Dead-end a line with a Chicago coupling blank end cap.

The pressure rating for all Chicago couplings is 150 PSI, and all are rated for compressed air or water service only. Do not use for steam service!

All Chicago type couplings include safety clips, please use them along with a hose safety restraint in all applications.