UNAOIWN Portable Air Conditioner Hose with Coupler, 5.9"/15CM Anti-Clockwise Thread Universal AC Exhaust Vent Duct, AC Tube Hose Kit Extension Parts Accessories Length up to 59”

Fits perfectly I definitely recommend ! I loved that!

I ordered this and it fits perfectly and it works!Great Product! Durable!

I've been using this for three years now and it's cracked in some places. Probably to be expected with the changes in temperature. It does the job. Fine length, flexible but still a bit of a pain to work with as these things are, and decent price I guess. I should probably replace this one but I'd rather try taping it first or something. Money's money :/

I purchased the hose and coupler set because I needed another 2 feet to reach the door in my garage with my Costway portable air conditioner. The coupler attaches perfectly to the Costway hose. The coupler is made of good quality plastic and the hose is about as thick as the Costway hose.

Portable ac vent for a new ac, we're going to need it this year. So far I like it, It installed easily and it is so much better than the aluminum one that was on the other ac last year. It looks nice in the dining room where the ac is going to stay for the summer.

Had a bit of a problem connecting the two exhaust hoses together. In the end made it work but was not easy.

Can't testify to durability due to the time of ownership. These fit perfectly to Haier free standing window AC. They are pliable/flexible make it easy to bend. You have to make sure the thread turns in the correct direction (clockwise or counter-clockwise) to fit your AC properly. Check and double-check before you order. Amazon flagged this as a frequent return item because buyers bought the wrong thread.

We used this for the air conditioner in the bedroom. The hose had to twist in an s shape to fit where we needed it. The hose held up bent the way it needed to without breaking. I would buy again.