Waterpik Warranty
WF-02
WF-03
WP-360
WP-450
WP-100/120
WP-250
WP-660
WP-300
WP-811
WP-861
WP-560
WF-06
WF-05
WP-150/470
CC-01
CC-02
SF-02
WP-160
WP-670
WF-10
WP-360
To find the serial and model number you will need to remove the reservoir.
1) Lift the reservoir lid and push it back towards where the jet tip attaches
2) Push the lid until the blue reservoir separates from the white unit
3) This should separate the 2 parts
4) The serial number is located on the base on the white section of the unit. The information is moulded into the plastic.
WF-02/03 & WP-450
The model and serial number are located on the motor housing under the blue/grey housing
WP-100/120/660/900
All serial numbers are imprinted in the label on the bottom of the unit. Newer models also include the model/serial combination locate in the plastic
WP-250/260
All serial numbers are imprinted in the label on the bottom of the unit. Newer models also include the model/serial combination locate in the plastic