6 Pcs Replacement Part Reservoir Tank Valve Rubber Gasket, Blue Washer Reservoir Plug Compatible with Waterpik Water Flossers WP900, WP112, WP250, WP300, Ultra, Nano, Traveler, VAVA, H2o (Black)
Warm Notice: Please make sure the model number is compatible before purchase, and noted that the gasket should be inserted from the inside of the reservoir, with its mushroom-shaped head on top.
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