Compatible for Waterpik WP-100,WP-105,WP-112,WP113, WP-114,WP115, WP117, WP130, WP140,WP-150,WP-250,WP-260,WP-270,WP-300,WP-305,WP-310,WP-462,WP-900,WP-72C This reservoir valve rubber gasket are made of silica gel, safe and soft, in addition. Replacement part for reservoir valve gasket, makes the lid sit tighter and not fall off while lifting the lid to add water or get tips, keep with factory pressure, don't let the water stain and residue reduce factory setting pressure, these gaskets work well and are easy to install recommend to change your gasket every 3 months for hygiene issue and efficiency Pack of 6, you will receive 6 grommets Unit count type: Ounce Compatible with Waterpik WP-100,WP-112,WP-130,WP-270,WP-300,WP-305,WP-462,WP-900,H2ofloss,TUREWELL,Initio