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In-line Sanitising System

“continuous cleaning, reducing the need for chemicals”


All Hot Spot® spas come ready to use this in-line cartridge system that automatically dispenses chemicals and minerals for carefree water care. It self-regulates based on the water’s sanitization needs, maintaining a consistent level of protection. frog cartridges create softer feeling water that’s virtually free of chemical odors since the system works with up to 75% less chemicals.

Main benefits


Easy to Use

Easy to install cartridge integrated within your hot tub



Fewer chemicals added means it is kinder to your skin



Simple water care means more time enjoying your spa


Long Lasting

Get up to 3 months continuous cleaning

HotSpot Collection

Available on all HotSpot® Collection spas, this easy-to-use in-line sanitising system helps reduce chemical use, increases water quality and saves time on water treatment.

How it Works

Available across the HotSpot range of hot tubs, the Bromine based sanitising cartridge is designed to sit neatly in the integrated in line-feeder located in the shell of the spa, where it works to continuously sanitise the spa. Rather than measuring out chemicals, you simply replace the cartridge, which usually lasts up to 3 months. The cartridge has a dial that you adjust depending on how often you use your hot tub. The Bromine cartridge reduces the amount of chemicals required and is also kinder to skin, making it easy to use your spa as often as you want.

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