FREE HydroMassage at Plant Fitness! April 11, 2017 By The Frugal Free Gal Leave a Comment More info Do you have a local Planet Fitness? If so, print out this coupon and stop in for a FREE HydroMassage! The coupon is towards the button of the page; simply click it and download/print it out. Coupon is valid 4/15 – 4/22.