Universal Portable AC Window Vent Kit – Fits 5.9" Exhaust Hose, Adjustable 17"–65", Vertical & Horizontal Windows

The missing piece for your portable air conditioner

Most portable AC units come with everything except a reliable way to seal the exhaust hose in your window. This universal vent kit solves that — adjustable from 17 to 65 inches, it fits virtually every standard sliding window and sliding door, both vertical and horizontal, without any cutting or permanent modification.

Compatible with any portable AC unit using a standard 5.9-inch diameter exhaust hose — including most major brands on the market.

What's in the box

Four interlocking PVC panels slide and lock together to span your window opening precisely. The included 5.9-inch duck coupler connects your AC's exhaust hose securely to the panel, and the 3.5-meter sealing strip closes any gap between the panel and window frame — keeping hot air out and cool air in.

Installation takes under 10 minutes with no tools required beyond the four included screws for the coupler assembly. When cooling season ends it disassembles just as quickly and stores flat.

Built to last

High-quality PVC resists warping, UV damage, and repeated assembly cycles — unlike the foam and cardboard solutions that come bundled with some portable AC units. The oval metal locking piece ensures the panel stays secure in the window track even with the exhaust hose pulling on it.

What's included

• 4 adjustable PVC window seal panels (17"–65" combined range)
• 1 x 5.9" duck coupler
• 1 x coupler filter
• 4 x screws
• 3.5M sealing strip

Note: AC unit and exhaust hose not included. Please measure your existing hose outer diameter before purchasing to confirm 5.9" compatibility.

Specs