Investment cast steel with carbon steel ferrule Universal Air Hose Coupling, 3/4 Inch Crimp/Swage Hose End

The 3/4 inch crimp or swage hose end is listed for a hose outside diameter range of 1-4/64 inch up to 1-22/64 inch.

Rated for use between -20°F and 160°F with the standard rubber washer, so it holds up through pretty serious cold snaps and summer heat alike. Just keep in mind that figure applies to the standard washer setup, so if you swap that out, all bets are off on the low end.

Fit comes down to the hose OD range it will crimp or swage onto. This hose end is meant for a 3/4 inch hose end and it covers hose outer diameters from 1-4/64 inch up to 1-22/64 inch.

Air and water both fall within what this coupling is rated for. That said, steam is off the table entirely, and that's worth knowing upfront if your application ever runs hotter fluids. Stick to air or water service and you're working within the intended design.