67.2mm / 2.65"
O-Rings Nitrile Rubber 67.2mmx72mmx2.4mm Seal Rings Sealing Gasket 10pc
A nice touch is the easy grip finish that resists dirt and grime buildup over time.
O-Rings Nitrile Rubber 67.2mm x 72mm x 2.4mm Seal Rings Sealing Gasket 10pcs
Going with this unbranded option means you get exactly what you pay for.