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. See Chicago coupling dimensions in our blog post. 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. Need to branch off from a custom manifold ? Send us a message, we love a good hose and coupling challenge. We look forward to hearing from you.
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 couplings include safety clips, please use them along with a hose safety restraint in all applications.