POWERTEC 70171 Threaded Quick Coupler, 4 x 2-1/2"

The POWERTEC 4-Inch by 2-1/2-Inch Threaded Quick Coupler quickly connects a machines 4 -Inch dust collection port to a 2-1/2 -Inch dust collection hose. The 4-Inch I.D end is designed to press onto a 4-Inch diameter tapered port. The opposite 2-1/2-Inch end simply threads into a 2-1/2-Inch dust collection port. No hose clamps are required. 4-Inch Nominal end measures 4-13/64-Inch tapered O.D., 3-31/32-Inch tapered I.D.