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The Grams Performance -204 bottom adapter O-ring is a Viton seal sized for specific injector bottom adapters. With an 11mm inner diameter, 17.5mm outer diameter and 3.5mm width, this single O-ring is offered for precise sealing where the -204 adapter is required. It supports reliable leak-free operation when replacing worn seals in compatible injector assemblies.
Grams Performance -204 Bottom Adapter O-Ring
