Description
Frog Dispenser Cartridge Holder 74500 or WAT74500 as used in Watkins, Caldera Spas, and other brand hot tubs.
Comes with Cartridge Holder O-Ring included.
Need the bromine cartridges?
See the green 200g bromine cartridge that has 25% more bromine, or get the standard yellow aftermarket 150g bromine cartridge for your Frog system.
We also offer the blue mineral cartridge.
