Amazon: Airhead Tow Harness, Self Centering Pulley, 12 Buy Airhead Tow Harness, Self Centering Pulley, 12 ft. (2-Pack): Hard Hat Accessories - Amazon FREE DELIVERY possible on eligible purchases Amazon : AIRHEAD TOW DEMON HARNESS 8' CABLE Airhead Tow Demon Harness 8' Cable Airhead's Tow Demons are higher strength versions and very popular water sports tow harness. The high-impact molded plastic float/pulley system allows for easy attachment of ski ropes, wakeboard ropes and tube ropes. Connect Tow Demon quickly and easily to boats with the 2 large corrosion-resistant snap hooks.3.1/5(24) 8 ft. Poly Rope Ski Tow Harness with Center Pulley-BR52431 Visit The Home Depot to buy 8 ft. Poly Rope Ski Tow Harness with Center Pulley BR52431. Helps improve 12 ft. usable rope tow harness. Helps improve towing and boat control. High impact plastic float pulley helps keep tow line away from propeller. Tow Harness for Tube/Inflatable Whadaya Have. - Pontoon Pontoon Boat & Deck Boat Forum. Open and Honest Pontoon Boat Discussion. Fellas take a look at this tow harness by Airhead. Need one for my Harris Flote, I only have the eye hooks on the rear of the toons. Saw this exact same Harness MINUS the pulley at Bass Pro.