universal window adapter for air conditioner, airtight seal for 15 cm exhaust tube, compatible with all standard portable and window units

This window adapter for portable air conditioners is designed to meet the practical needs of French urban households, particularly in apartment buildings or rental properties where fixed installations are not permitted. Made of high-strength ABS (not PVC, as erroneously stated in some product descriptions), it combines lightness (380 g) with structural stability. Its precise dimensions—15 cm internal diameter, 21.5 cm length, and 7.5 cm height—ensure optimal compatibility with standard ducts sold with portable units. The anthracite gray color blends discreetly with most window and door frames. It is suitable for use in living rooms, bedrooms, and home offices, as well as temporary professional spaces (trade shows, booths, seasonal premises). Meeting French consumer expectations for simplicity, safety, and energy efficiency, it contributes to more effective temperature control without compromising acoustic or visual comfort.