Round up your friends and have a blast on the water with the 5-person Round-Up towable tube. Fully covered with 840-denier nylon for durability, the Round-Up towable tube features a comfortable inflatable floor, 12 handles with knuckle guards, quick-connect hook, and Boston valve for easy inflation and deflation. 80" diameter.
The Boston Valve is a screw-on, two-way valve. The bottom portion is screwed into the towable, while the top is screwed open for inflation and then tightened after inflation. Air is easily released by unscrewing the base connector. It's important not to miss a thread when screwing in the Boston Valve as it may cause the tube to slowly leak air. Boston Valves can be replaced easily.