5.9 inch / 6 inch Portable Air Conditioner Exhaust Hose Coupler,Coupling,Window Adapter,A/C Unit Tube Connector Mobile Air Conditioning Accessories(Round)

Muy bien material 👍🏻

Even though this was the piece and size needed, it didn't fit snuggly at all. Had to use tape.

This was just what I needed to seal the hot air coming in through the tube of my portable AC.

I bought a used Kenmore portable AC an didn't have this connector or hose with it and this fits perfectly no air leaks