Universal Window Seal Kit for Portable Air Conditioner of Exhaust Hose 5.1 Inch Diameter with Coupler Adjustable AC Vent Kit PVC Seal for Sliding Window

It was missing the seal. Also I had to do a bit of engineering to make it fit with mine hose, it was bit small for my portable ac. Had to run to Home Depot to by the seal, which end up costing more

Simple to install works perfectly

Doesnt seal at all or hold in any of the cold air your bringing in from fan I dont recommend it unless you are just wanting to keep the bugs outside by having window or slider mostly shut

I find that I have to adjust mine regularly to keep it the right length to fit my sliding door. Also the weather stripping was to short to cover both sides.

Easier than the original component.

Easy to install, we used it as exhaust vent for my sons 3d printer and with some adjustments after 4 months we are very happy

I bought a used portable air conditioner from my neighbor and the window vent unit was damaged. I purchased this as a replacement. It was a little large for my small basement window, but I was able to trim it and it fit well. I especially liked the way the exhaust piece easily snapped securely into the window piece. It was easy to remove and take apart when it was time to store the a/c unit.

The original kit that came with my air conditioner was way too short to fit my window. Apparently air conditioner manufacturers think no window should be more than 2 ft tall. Works great, remains stable, and is a decent price.

Easy to install! No tools necessary! Hardest part was getting the exhaust hose to stay in the piece that attaches to the window insert.

If your window is somewhere roughly between 17 inch and 21 inch you will need to cut the back plate down to size as the circular duct attachment protrudes out the back. Pretty expensive for what it is but then it appears they all are.