Portable Air Conditioner Hose Coupler with Flat Wide Rectangular Mouth

This gray air duct connector features a tapered body that converts from a flat, wide rectangular mouth to a ribbed cylindrical end. It is designed to grip tubing tightly to prevent air leaks. The connector has a 13 cm mouth and is compatible with a 15 cm duct diameter. The flat-opening configuration is useful for routing through tight window openings or narrow gaps, making it suitable for portable air conditioning units, vehicle setups, or camping ventilation.