Superior Energy Savings & Heat Reflection Aluminum foil radiant barrier reflects up to 97% of radiant heat, reducing energy loss from your AC exhaust hose. Helps your portable AC cool up to 30% more efficiently, lowers electricity bills, and ensures faster, more consistent cooling all summer.

Universal Fit for 5" & 5.9" HosesExpertly designed for true universal fit – works with both 5-inch and 5.9-inch diameter AC exhaust hoses. Available in 59-inch (standard) lengths to cover most portable air conditioner hose. The generous 11.2-inch width ensures complete coverage and maximum heat isolation for various brands and models.

Easy 3-Step Installation with Drawstrings No tools required. Slide ac hose insulation sleeve over hose, tighten drawstrings at both ends, then secure with included cable ties for extra stability. Takes just minutes. Lightweight drawstring design is easy to remove and store when not in season. Perfect for renters and seasonal AC users.

Premium 3-Layer ConstructionBuilt to last with 3-layer design: outer tear-resistant waterproof oxford cloth, middle high-density foam for insulation, inner aluminum film for heat reflection. Blocks extreme heat, withstands daily wear, and lasts season after season. Also waterproof and dustproof.

Prevents Hot Air Backflow & Reduces AC Workload This portable AC hose insulation wraps your exhaust duct to stop hot air from leaking back into the room. By reducing AC workload, it extends unit lifespan, lowers energy consumption, and delivers consistent cooling performance for lasting comfort.