American Standard EZ-Install Elite Whirlpool Heater MODEL# EZHEAT-100. Enjoy longer, more relaxing soaks in your whirlpool, air bath or combo massage tub by adding an EZ-InstallT Whirlpool Bathtub Heater. Fill the tub with water at your preferred temperature, and this in-line heater will constantly maintain it for as long as you want. Luxury Series whirlpools and combo massage systems from American Standard® offer massage therapy options to satisfy any need, whether it's renewing aching muscles or soothing away the tensions of a hectic day. Also, with the addition of the EZHEAT-100 heater you can enjoy longer, more relaxing soaks.Made Exclusively for American Standard Whirlpools. Enjoy the comfort of your American Standard Whirlpool longer with the help of an EZ-Install Whirlpool heather. Maintains constant water temperature while bathing. For use only with American Standard Whirlpool model#: 7242E, 7236E, 6060E, 2908E, 2902E, 2901E, 2806E, 2805E, 2775E, 2774E, 2773E, 2772E, 2771E, 2711E, 2425E(ALL).