Posted December 15, 2014
I have some that cost just a couple dollars less and they won't stay open on their own. These work great and can be open as much or as little as you need to adjust air flow. Very happy!
Posted October 4, 2014
Hose and clamp hold well, gate stops air well.
I've been using both the 4"...
Posted January 1, 2011
I've been using both the 4" and 2.5" almost 5 days a week for about 6 months now with no problems at all. The only issue was the connection is slightly tapered so I had to use a couple of small sheet metal screws through the hose into the gate to keep it from slipping off even with a clamp. Once that was done I've had zero maintenance on my dust system.