Stretch and Free Shrink The hose is retractable and can easily extend the length of the drain to fit anywhere you want. The flexible hose is made of polypropylene for flexibility, durability and portability, a good alternative to avoid air conditioner leaks when the bottom drain hose breaks. Easy to Install Gently extend the drain, make contact with the existing pipe, align the ends, turn clockwise until it snaps into place, easy to install. Compatibility The exhaust pipe is suitable for all types of models. As long as the same hose is used, the fitting is 13/15 cm in diameter (outer edge) and its threads are counter-clockwise., Manufacturer: TRDEWR