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A replacement square O-ring from Peterson Fluid Systems intended for use with parts 09-0001 through 09-0004. This spare seal restores proper sealing for the matching filter block-off components and supports routine maintenance or rebuilds. Keep a dedicated replacement on hand to ensure leak-free connections when installing or servicing compatible block-off plates.
Peterson Fluid Systems O-Ring For 09-0001 Thru 09-0004
