Gasket for 3-part 2-inch slide valve

This replacement gasket fits the Magic Plastics 2-inch 3-part slide valve. The price is for an individual gasket, and each valve contains two of these gaskets.

Dimensions
Inside diameter: 49 mm
Outside diameter: 64-65 mm
Thickness: about 8 mm (hard to measure because it's squishy)

Part numbers
Magic Plastics: 0080301020