Product Description
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Premium pre-filled mineral cartridge designed for the FROG® Serene Floating or In-Line system, supporting hot tubs from 150 to 600 gallons. The cartridge gently releases beneficial minerals to soften skin and eyes and reduce bromine usage.
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Demonstrates patented dual-action sanitation by combining minerals with low-level bromine to destroy bacteria while reducing chemical demand.
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Lasts approximately 4 months—an ideal interval that aligns with routine spa draining and refills.
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Minimizes bromine use by up to 50%, cutting odors, protecting swimwear, and enhancing comfort.
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Simple snap-in design fits securely in the reusable green floater or in-line cartridge housing, making installation and replacement easy.
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Eco-friendly and recyclable cartridge helps reduce plastic waste over time.
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Maintains stable pH levels and crystal-clear water by balancing mineral and bromine action.
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Trusted by spa professionals, this cartridge makes spa maintenance virtually care-free with set-and-forget convenience.
Product Specification
| Brand | FROG |
|---|---|
| SKU | ES-2530 |
| Dimensions | 6.89 x 2.01 x 1.93 in |
| Barcode | 722906038115 |
| Weight | 0.29 lb |
| Chemical Type2 | Mineral |
| Chemical Form | Granular |