HotSpring ACE and FW Cartridge
The OEM cell is gone. The Scepter is your heavy duty, factory-built replacement salt cell.
I have what I call an unbelievable story. A frozen hot tub that thawed out with no damage. It all started back in February when I asked for a picture of The Infinity Filter in a hot tub with a single filter. In this case an older Bullfrog. Following are screen shots of text messages.

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Fast forward to March 11, 2025

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I finally got my filter picture!
It’s simply amazing that this hot tub tripped the breaker, froze, thawed out and started up and got to temperature with no leaks of damage!
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.
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