The HIN is your Hull Identification Number (serial number) for your boat. All Pond King HINs start with UPO.
Ultraskiff: The HIN for the Ultraskiff is stamped on the outside of the Hull on the Starboard side (near the transom)
Rebel: The HIN for the Rebel is stamped on the inside of a square tube under the deck on the same end as the transom.
Patriot:The HIN for the Patriot is stamped on the inside of a square tube under the deck on the same end as the transom.
Champ, Sport, Pro, Ultra, Lil’ Cruiser or Elite: You’ll find the HIN stamped on the square tube that’s coming out of the rear frame and connected to the transom (where the motor is mounted at the rear of the boat)