According to the site, just give them a call and they'll get you all set up! I took this right off their website...
Replacement Parts & Equipment
Chances are, we have it! SteamSaunaBath maintains the largest parts inventory for steam generators and sauna heaters in the world! Our shelves are loaded with parts from all
manufacturers for almost four decades. Most parts are available for purchase on this site however, SteamSaunaBath always recommends confirming the parts you need prior to ordering. If we donít have it, we know where to get it or it doesn't exist!
If you would like to purchase a part that is no longer covered by the manufacturer's warranty, you may contact our Service Center by phone toll-free at 800-707-2862, Monday through Friday, 8am-5pm CST or email us at Service@SteamSaunaBath.com
. To help us serve you quickly, please be prepared to answer a few questions and provide information regarding your equipment and installation. Information including model number, manufacturer, equipment age and description of the part you need will be extremely beneficial in us guiding you quickly on the necessary item and most efficient manner in obtaining the component to get you sweating again.
Here's the link if you want to read the full details http://www.steamsaunabath.com//catalog/service.php#parts