Find great deals on eBay for 3/4 rubber hose. Shop with confidence. Skip to main content. eBay Logo: ... Continental 65010 Heater Hose, Rubber, Black, 3/4 in. I.D., 250 ft. Length, Each See more like this. 18 Pcs 3/4" inch OD O-Ring Hose Gasket Flat Rubber Washer Lot for Faucet Grommet. Brand New.