If your Hypro D30 or D503 diaphragm pump is losing pressure or leaking, these diaphragms are likely the culprit. This pack includes two genuine Hypro 9910-620080 diaphragms made from Buna-N rubber (also called nitrile). Buna is a common material that's resistant to oils, fuels, and many chemicals, making it perfect for sprayer and transfer pump applications. Replacing worn diaphragms is standard maintenance to keep your pump running smoothly. The process usually involves opening the pump housing, removing the old diaphragm, and installing the new one – consult your pump's manual for specifics. Having a two-pack is handy so you can do a complete rebuild or have a spare on hand. Keep your spray rig or fluid transfer system in top shape with these OEM-quality replacement parts.
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