Features: Expandable exhaust hose with 5.12"/5.91" diameter fit most portable air conditioning units, extending from 14.17" to 78.74" for space saving storage and flexible installation. Constructed with plastic, this air conditioning vent resists heat, abrasion, and aging while being waterproof for easy cleaning with wet cloths or direct rinsing. Ideal for portable air conditioning owners needing replacement hoses, particularly renters and small space dwellers requiring small easy installation solution. Perfectly seals window vent in homes, offices, or apartments where efficient portable air conditioning exhaust hose management is for cooling performances. Features bidirectional threading (clockwise/counter clockwise) and connectable sections, ensuring exhaust hose compatibility across various air conditioning models when properly matching. Specifications: Component: Plastic A Diameter: Approx. 5.12inch(13cm) B Diameter: Approx. 5.91inch(15cm) 1 Length: Approx. 59.06inch(150cm) 2 Length: Approx. 78.74inch(200cm) 3 Length: Approx. 118.11inch(300cm) Package Includes: 1x Mobile Air Conditioning Exhaust Duct note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.