In-ground / Combo backboards – There is a three-digit number on the front of the backboard, near the lower right section of the shooting square. This set of numbers will help identify your system.
Portable – The model number will consist of two sets of numbers. The first set of numbers will be a two-digit number located on the base. This two-digit number will be located near the fill hole where you put the water or sand. The second set of numbers will be a three-digit number located on the front of the backboard, to the right of the rim. The base number coupled with the backboard number will be your model number. “Example 72_351 – 72351”