This is the Pfeiffer Part# 192122 Plate Valve Nib. It is a replacement part made from durable Viton material . This valve nib is used on many Pfeiffer UNO and DUO pump models including UNO1.5A, DUO1.5A, DUO5, DUO5C, DUO6, DUO6M, DUO10, DUO10C, DUO11, DUO11M, and DUO11MC . You will also find this part included inside minor repair kits and overhaul kits for these pumps . Keep your pump’s valve system working right with this direct-fit component.
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