POWERTEC 70135-P4 4-Inch Aluminum Blast Gate for Dust Collector, Dust Collection Fittings, 4 PK

Works exactly the same as my other blast gates.My only complaint is that the sliding gate is made of soft metal and when you slide the gate open and closed the gate easily bends where it is thin at the open side and I have to bend it back straight all the time.

Great materials and very solid, but seeps air through the slide, allowing it outside the sealed system

Anyone who buys a blast gate for dust collection that is not self cleaning is a fool. Sorry, but true. These leak a little, but unless you DIY or pay 10 times more, can't beat them. They do leave it up to you to figure how to mount it.

Functions the way I need it to. Love the anti clog feature so it will always open and close

The description on this product should not say designed to eliminate air leaks cause it does not at all. I run commercial lasers and other tools and this thing leaks smoke and fumes into the shop to an extent we have to air out the shop before continuing work.

The steel gate is very loose inside the housing, it’ll leak air and also get clogged with dirt. (It’s 1.2mm sheet in a 3.2mm gap).The hole in the gate is not round (and not as shown in the photos), which creates turbulence, reducing airflow.I can probably get them working well enough, but then I could also have made my own from scratch if fiddling about was what I wanted to spend my weekend on.

Made of heavy duty materials. Functions smoothly.

Work great, like the way they are made for they don't get clogged up so easy.

this is a great little blast controller, very cool

Great locks

Great product .....