O'Brien Floating Ski Tow Harness | Wholesale Marine The O'Brien Floating Ski Tow Harness is for boats that don't have a center tow pylon or center towing hook. Order yours at Wholesale Marine.Brand: O'brien Watersports 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: boat tow harness with float Amazon: boat tow harness with float. Skip to main content. Try Prime All O'Brien 12' Ski Tow Harness - Pontoon Bridle. 3.6 out of 5 stars 3. $24 $ 24. 80. Get it as soon as Thu, Aug 8. FREE Shipping on orders over $25 shipped by Amazon. O'Brien 16' Ski Tow Harness - Pontoon Bridle.