When we purchased our greenhouse, we received two Univents. They work so well, we purchased two more so all the top windows will open. It's amazing how they work.

We have had a couple of uni-vents in our greenhouse and decided to replace two manual vents. The video installation instructions were marginally helpful. By the time I installed the second one, I deconstructed it and installed it separately. Soaking the cylinder in ice water really adjusts the beeswax. Overall, we are super happy.

We attached a Univent to a new cold frame and it is working perfectly. Thank you for a great product and fast delivery!

I had two solar vents for my two cold frames. They worked fine. However the frame's thick plywood lids are so heavy, I decided that i needed two solar vents per cold frame. I ordered from ACF Greenhouses. Products arrived within days. Great service. And the vents are great too.

 

Easy to install and they work great. Fix a ridge vent on a old wooden green house by making 8’ section with an opener at each end. Works great.