The FROG Inline Cartridge Holder is built right into the spa. It fits replaceable mineral, SmartChlor, or bromine cartridges developed by FROG.
Designed for:
- Caldera Spas equipped with Inline cartridge system
- Hot Spring Spas equipped with Inline cartridge system
- Artesian Spas equipped with Inline cartridge system can also use this.
To use, you simply open the cap, pull up the holder and snap in the cartridges.
PLEASE NOTE: This is a replacement holder only and does not include any mineral or bromine cartridges.