- Plastic
- Square portable air conditioners– air conditioner exhaust hose interface constructed from quality material with good flexible, durable and portable. not easy to crack even after long time use.
- Air conditioner exhaust hose inlet– friction loss is small, if installed correctly, will not leak.
- 6 inch vent hose connector– good texture, fine workmanship, very durable.
- Air exhaust hose connector– air conditioner exhaust hose interface .good texture and fine workmanship, very durable.
- Square exhaust hose coupler– 【fit for portable air conditioner hose】 the window adapter is portable air conditioner vent kit, exhaust hose connector kit.