1. 5.1 INCH PORTABLE AC HOSE: This exhaust hose features a 5.1" diameter with an anti-clockwise thread direction. Verify compatibility with your air conditioner parts before purchasing to ensure a proper fit. 2. ADJUSTABLE LENGTH: The hose expands up to 80 inches, providing the flexibility to reach through walls or windows. It can also be shortened to 15 inches for convenient storage, making it adaptable to your specific needs. 3. DURABLE & UNIVERSAL FIT: Constructed from robust polypropylene and reinforced with steel wire, this hose is designed to resist kinks and collapse. It serves as a reliable replacement for a variety of brands, including LG, Honeywell, Whynter, Frigidaire, Toshiba, Delonghi, and more. 4. SIMPLE INSTALLATION: Easily connect the hose to your portable AC unit by extending it to the vent. Align the hose with the specific coupler on your unit and twist anti-clockwise until securely in place. Practical Use Cases: - Connect to a window vent for efficient cooling during hot summer days. - Extend the exhaust hose through a wall to maintain indoor air quality while maximizing cooling efficiency. - Use as a replacement hose for various portable AC models that require a standard 5.1" diameter accessory.