Double Layer Insulation Foam Panels, Portable Air Conditioner Window Vent Kit, Adjustable AC Window Seal Panels for Seal Heat, Fill Gap & Noise from Outside(3-Pack)

Dual-Layer Insulation Design: The double-layer foam panels help block outside heat while maintaining cool indoor airflow when using window vent kits, and this insulated window vent foam board can keep rooms comfortable during hot weather. | Compatible with Most Portable AC Vent Kits: Our insulation foam board is ideal for portable air conditioner insulation, portable AC window vent kits, dryer vent kits, and other window ventilation systems, helping improve insulation around vent openings. | Adjustable Length up to 50 in: These insulated foam panels for portable ac window seal kit include 3 foam panels that can be combined for a maximum expandable length up to 50 inches, fitting most sliding window vent panels on the market. | Heat, Light & Noise Blocking: The 2-layer insulation foam helps reduce heat transfer while also blocking sunlight and outside noise, making this window ac insulation kit a better choice for indoor comfort and energy efficiency. | Easy to Cut & Install: Simply trim the foam insulation board to match your existing window sealing plates. Installation is quick and convenient with the included double-sided tape.