WATERWAY | Colar Gasket (Use with Clamp Style) | 711-1920

OPTIMUS #4742-02 WATERWEY #711-1920 THIS IS A CLEAR WHITE ROUND GASKET USED ON THE OLDER WATERWAY CLEARWATER SAND FILTER. THIS IS USED ON FILTERS WITH THE CLAMP STYLE VALVE. THE NEW SPLIT NUT STYLE VALVE USES AN Oring. THIS ROUND WITH RIDGES AND A SLIGHT LIP AT THE INSIDE EDGE DIMENSION: OUTSIDE DIAMETER: 7-3/16" INSIDE DIAMETER: 6-3/4" THICKNESS: ABOUT 1/8" AT THE OUTSIDE ABOUT 1/4" AT THE INSIDE LIP