The FROG® Serene™ Bromine Cartridge (single, 01-14-3824) is the replacement bromine cartridge for FROG Serene floating and in-line systems. Prefilled and self-dispensing — no bromine floaters to fumble, no granules to measure.
- Lasts 2–4 weeks depending on bather load and spa size
- Works with the FROG Mineral Cartridge for lower total bromine use
- Use standard bromine test strips (not @ease strips)
Download the FROG Water Care app!
List MinnSpas as your Dealer — Zip Code 55124
Now available on the App Store and Google Play:
Questions? FROG’s water care experts are at 1-800-222-0169 — or call us at MinnSpas: we run these products in our own store and spas.
FROG Serene Bromine Cartridge FAQs
When your bromine reading drops below range on a standard bromine strip — typically 2–4 weeks. Dial the cartridge setting up for bigger tubs or heavier use.
Yes — FROG Serene is the current name for the Spa FROG bromine system; the cartridges are the same fit.
Yes — we stock the full FROG line in our Minnesota store, about 20 miles from where King Technology makes it, and ship fast nationwide.
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