POWERTEC 70188 Threaded Quick Coupler 4 x 2-1/4

The POWERTEC 4-Inch by 2-1/4-Inch Threaded Quick Coupler quickly connects a 4-Inch port to a 2-1/4-Inch dust collection hose. The 4-Inch I.D. end is designed to press onto a 5-Inch diameter tapered port. The opposite threaded 2-1/4-Inch end simply threads into a 2-1/4-Inch dust collection port. No hose clamps are required. 4-Inch nominal end measures 4-7/32-Inch O.D. and 4-Inch tapered I.D.