Pooldevil Pro Universal Aim Flow Fitting then the universal fitting is

then the universal fitting is your solution

Intex & Coleman 4 inch Aim Flow Fitting (common for most above-ground pools)

the return water flow pipe must be a clear 1 1/2 inches in diameter

Auto Positioning for Optimal Cleaning: The Pooldevil Pro positions itself along the pool wall

Unlike traditional cleaners that follow a set route

Pooldevil Pro Universal Aim Flow Fitting then the universal fitting isIf your return line is just a pipe without threads and no other fitting will fit your pool, then the universal fitting is your solution. For the universal fitting to work, the return water flow pipe must be a clear 1 1 2 inches in diameter.