Buy It Now. Free shipping. The exhaust hose that comes with the portable air conditioner is suitable but not as sturdy as the Clockwise insulated exhaust hose. Watch; Exhaust Hose 5.9 Inch Diameter AC Unit Duct For LG Portable Air Conditioner … So please measure and double check if your existing exhaust hose’s diameter and … Because it is insulated less heat … Free returns. Brand New. Target VM Express $25 – $50 $100 – $150 $150 – $200 $200 – $300 $300 – $500 $500 – $800 $800 – $1000 Evaporative Coolers Portable Air Conditioners Through the Wall Air Conditioners Window Air Conditioners … portable ac exhaust hose. Portable Air Conditioner Exhaust Hose 79in Extended Replacement AC Tube Hose. Trending at $37.99 Trending price is based on prices over last 90 days. Portable Air Conditioner Exhaust Hose - 5in Diameter, 79in Extended - Replacement AC Tube - Counter Clockwise Threads Air Conditioner Hose - Portable AC Exhaust Hose 4.2 out of 5 stars 318 $29.99 $33.59. It is thicker and much more sturdy. The same portable air conditioner brand uses The same portable air conditioner brand uses multi-diameter hoses.