RF 9.3"(236mm) Retro-Fit series StoneLids™ fit the following standard 9.3" inside diameter rings:

Pentair®, Pac-Fab®, Bermuda®, American Products®, Admiral®, Waterway®, Paramount® (leaf trap covers), Skim-Clean®, Purex®... 

Not sure what color you want? > Go to the Stonelids™ color matching gallery