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Ensure the spool is compatible with the intended GRACO system
It is constructed for reliable storage and controlled dispensing of fluids
Clean the mating surfaces thoroughly before fitting the new O-ring
Replace worn or damaged packing cartridges promptly to maintain system efficiency
GRACO Packing O-Ring - (SKU: 121139) Ensure the spool is compatibleThe GRACO 121139 is a packing O ring designed for use in GRACO spray foam and fluid handling equipment. It serves as a sealing component to prevent leaks and maintain pressure integrity within the equipment. The material is not explicitly specified in available listings, but O rings in similar GRACO applications are typically made from elastomers such as nitrile rubber or PTFE for chemical and pressure resistance. Key Features: Packing O Ring Designed
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