Customer Reviews for Master Flow 16 in. x 8 in. Automatic Open/Close Foundation Ventilation Crawl Space Vent in Black

Fairly good foundation vents. A little hard to keep screws secured to foundation.

Installed 8 of them in a day. I had to air chisel concrete block to install..

Easy to install, need cooler temperatures to see if it will close.

Works perfectly on our steel building. https://www.hurricanesteelbuildings.com/

love the auto vent no more having to walk around the house depending on temperature. with the auto vent I can just forget about it they work great open and close based on the temperature outside worry-free hassle with maintenance free very easy to install ‼️

Great vents!! These are automatic temperature controlled vents. They open and close automatically.

Vent seems to operate as specified although seasonal temperatures not been cold enough to check if it closes below 40 degrees.

Pretty easy to install. Look great. Work as great as they look. Previously installed some about 5 years ago and bought these to complete the project of installing these to have all of my foundation vents changed to these automatic vents.

Wasn't an exact fit, but does the trick.

Replaced an old one that the lawn guy shredded up. This new model was slightly larger so had to ground the concrete a little more to fit. Works as stated.

They worked out perfect.

I felt it was a little overpriced but it is well built and sturdy.

delivered quickly, Exactly what we needed for the project

Old vents were not working and my age is not allowing me to get down to work damper. Some dampers had missing arms. Moisture was another issue to replace them. Will look great when installed.

Good quality product

Easy to install and the vents have been opening and closing as advertised. It would be nice if they came in a sturdy metal instead of plastic.