SPA FROG 4 Month Pack


In stock (can be backordered)

SPA FROG Bromine Cartridge

SPA FROG 4 Month Pack

The SPA FROG 4 month pack contains.  4 yellow Bromine Cartridges and 1 blue conditioning cartridges.

The SPA FROG 4 month pack offers great value

Why limit the peace and serenity of a hot tub with second rate water care. The SPA FROG® System enhances a standard hot tub up to 400 gallons with its patented delivery of minerals and a low dose of bromine. This hot tub Fresh Mineral Water system eliminates the need for daily maintenance & chlorination, improves water quality and removes the unmistakable smell of chlorine. all the while reducing bromine use and enhancing your hot tub water quality. Simply snap the pre-filled conditioning & bromine cartridges into the reusable floating holder or in-line dispenser. Sit back, relax and enjoy your crystal clear hygienically clean hot tub water.

How It Works

The FROG Serene Fresh Mineral Water In-Line System is part of the hot tub’s plumbing, with an easily distinguishable and convenient cap for top loading of the mineral and bromine cartridges. A simple twist and the cartridge basket is removed from the hot tub for quick and easy cartridge replacement. The entire process takes less than a minute. The minerals last a full four months set wide open, while the bromine usually lasts around three weeks with adjustable settings to meet each hot tub’s needs.

What size hot tub will FROG Serene work in?

Hot tubs 150 to 600 Gallons are perfect for FROG Serene.

How does FROG Serene compare to other bromine floaters or using chlorine?

If you are tired of smelly chlorine odours and having to spoon in chemicals every time you use your hot tub, FROG Serene is for you. FROG Serene is not just bromine.  It contains FROG minerals that destroy bacteria so you need up to 50% less bromine. Plus with the In-Line System everything is tucked away but with easy access when you need it.

How long do the mineral and bromine cartridges last?

The mineral cartridge lasts four months or whenever the hot tub is drained and refilled. The bromine cartridge lasts 2-4 weeks.

Which hot tub brands have the FROG Serene In-Line System?

Caldera Spas, Hot Springs Spas and Marquis Spas all have the in-line system installed on select hot tub models at their factory.


Download Frog manual Frog-Inline-system.pdf


If you require further details and information on this product please call. Three Counties Pools & Spas on 01432 273636 or Email:

Additional information

Weight 0.15 kg


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