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SP-281TT LMI Unidose Repair Kit | 3rd Gen Red & Pink Pumps
Product Overview: The SP-281TT Liquid End Repair Kit is the essential maintenance set for 3rd Generation LMI Milton Roy Unidose metering pumps. These legacy pumps are easily identified by their Red (or faded Pink) plastic housing. This kit provides the genuine LMI parts required to stop leaks and restore factory-spec chemical dosing.
What’s Included in the SP-281TT Kit:
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(1) Liquifram™ Diaphragm: The heart of the pump, designed for long-term chemical resistance.
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Replacement Seats: Precision-fit seats to ensure proper valve check operation.
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O-ring Set: High-quality seals to prevent external leaking and internal pressure loss.
Note: This kit is specifically for the 3rd Gen Red/Pink series liquid end. It is not compatible with the 4th Gen Black pumps (which use the SP-238).

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