surephon portable ac hose, 80" length 5.9" diameter portable air conditioner exhaust vent hose, anti-clockwise thread universal replacement ac duct hose (no coupler) 80" exhaust hose is up for auction in Appliances. The current bid is $1.00, 96% below the $23.74 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.