https://alexnld.com/product/2-pcs-1-5m-steel-hat-304-stainless-steel-metal-knitting-hose-toilet-water-heater-hot-and-cold-water-high-pressure-pipe-4-8-inch-dn15-connecting-pipe/?hilite="4M Air Conditioner Exhaust Hose Hot Air Stop Outlet Window Seal Cloth Kit for Mobile Air Conditioner"