POWERTEC70135V 4" Blast Gate for Dust Collector, Dust Collection Fittings

all good

No complaints but so far they haven't clogged and work well. They have some air leakage when closed but that's to be expected

Used this to be able to run my genny cord into my shed. Works mint.

It's made in Taiwan, and China hates Taiwan! So it is almost as good as made in America.Aside from that, it's a nice sturdy metal (aluminum) gate, and it does not cost much more than the plastic ones. This is not flimsy sheets of aluminum either; it's a solid piece, and it works. ...well worth the upgrade!

These blast gates seem really well built, and were quite simple to install. Make sure to have the locking knob away from the suction so when it's closed the gate will suck up against that side for a tighter seal. It would have been nice for the round flanges where the 4" hose or duct fastens to be a bit longer so you could seal with tape first and then connect with a hose clamp, but I guess you could seal that connection with silicone if that was a concern. Also make sure you have clearance on both sides of the blast gate to allow for it to slide open and closed.

Metal blast gate works as described, really like the fact that they self clean, unlike the plastic ones that will get sawdust inside and not close. I am replacing plastic with these as they work so much better and easier. Thank you, and yes I will recommend them to friends.