Demo Card SUPLooking to purchase a new Stand Up Paddleboard? The 4CRS SUP Demo Card is the perfect way to try before you buy. The demo card allows you to try up to 5 different boards and is good for $75 off the purchase of a new board or board package. All participants must fill out a waiver form before each demo SUP demo cards cost $125 and are good for 5 SUP demos and $75 off a new board or board package 15% off accessories purchased at the same time as your new