POWERTEC 70149-P2 4 Inch Dust Control Flex Cuff with Steel Hose Clamps, Hose Connector Rubber Cuff Coupler for Woodworking Dust Collection Fittings, Dust Collector Accessories & Machinery, 2 pack

LONG STORY SHORT:Simple, Good Quality, Works as intended. No complaints. Not much more too it than that lol. As you can see, the unit on my Jointer has the blue "hand twist" hose clamps. I honestly cant remember why one has the hand twist clamps and the other has the screw twist ones. I think I took the hand twist ones off another item all together just for initial convenience. But I don't ever remove this, so I would have been fine with the screw twist ones.CONS:-They only sent me 1 initially. I thought I had ordered the wrong thing, but I simply did an exchange, and only sent one back. No harm no foul, just something to keep an eye on.

Used these in conjunction with the Powertec Elbow to connect my 4 inch dust collector hose to my Dewalt planer out of the way from lumber on the outfieed table.

I used it to setup a dust collection system because I am a big boy wood worker now and decided to actually build a good workshop. Seals well and works well

The cuffs grip well on my dust collector and are able to handle the weight of a couple accessories hanging on it without additional support. Overall I'm happy with them, the fact that they're cheaper than what I could find locally is a bonus.

Good quality