Compatible Models
WP-100-450 : Waterpik® Ultra and Cordless Plus Water Flosser Combo (** Discontinued **)
WP-112-462 : Waterpik® Ultra and Cordless Plus Water Flosser Combo (** Discontinued **)
WP-360 : Cordless Water Flosser
WP-440 : Cordless Professional Water Flosser (** Discontinued **)
WP-450 : White Cordless Plus Water Flosser