Part # 57-270-1008
Manufacturer Code 711-4350
Your Source for Swimming Pool & Spa Parts - INYOpools.com
What is the size of this gasket? I don't know who made my pool, it is at least 12 years old. My gaskets for the return deteriorated and I need new ones. Mine are 5 1/2 outside and 4 9*16 inside.
This item shows the approximate dimensions of 0.2 x 3 x 3 inches.
My lens requires a gasket which measures outside diameter 3 inch, inside diameter 2.5 inches. Not sure what your 3x3 means?