Unbranded Portable AC Window Vent Kit with 5.1 in Exhaust Hose Adapter Adjustable Sliding Panel and 2 Pack 3 m Window Seal

Indoor air exhaust sealing system designed for portable air conditioners to improve hot air discharge efficiency and reduce air leakage in sliding window installations. This adjustable window vent kit fits 17–61 in window openings and supports 5.1 in hose diameter exhaust systems. Constructed from durable PVC panels with interlocking sliding slot design for stable assembly. Includes dual panel sets, sealing tape, and hose adapter for complete installation. Suitable for residential sliding vertical or horizontal windows. Includes 30-day warranty.