I made an aluminum frame to mount a large cooler using the Linq system for Seadoo. I used 1" square aluminum tubing and stainless steel screws/ lock nuts that I got from Lowes. The 1" tubing was the right height for the Linq system. The Linq connectors were purchased on Amazon. I used a miter saw with a wood carbide blade to cut aluminum tubing. I mounted a 55 quart Lifetime Cooler on top of this rig. Bear in mind that the system is only so strong. For safety, I transport the cooler in my truck and only put the cooler on at the dock. Do not overload the cooler or something (like the linq system) may break. If you ride the seadoo with a large cooler, adjust your riding style for a fragile cooler setup. I covered the tube ends with a plastic plug from Amazon.
