HotSpring ACE and FW Cartridge
The OEM cell is gone. The Scepter is your heavy duty, factory-built replacement salt cell.

The Ultimate Maintenance Guide For Ace & Freshwater Salt System is here. The revised edition came from The Ultimate Guide On How To Save Money Maintaining Your Hot Spring ACE® Hot Tub. Many things about the Freshwater cartridge system are very similar to the original Ace system.
Learn tip and tricks for saving time and money maintaining your Watkins Ace or Freshwater salt system.
This came about from a customer request and can be accessed here.

The OEM cell is gone. The Scepter is your heavy duty, factory-built replacement salt cell.
ControlOMatic closed. We still offer parts, heavy duty salt cells, and repair help.
Tired of itchy skin? Convert to saltwater. We'll help you choose the right system for your tub.
Get support from the people who make the parts.
Mon-Fri, about 8 AM-6 PM Mountain Time