Description
FROG® Serene® Mineral Replacement Cartridges
Keep your spa water fresh, clean, and gentle with FROG® Serene® Mineral Replacement Cartridges. Using FROG’s proprietary mineral blend combined with a low level of bromine, this system sanitizes your hot tub water two ways - killing bacteria while reducing bromine use by over 50%. The result is clear, comfortable water that’s easier to maintain and softer on skin, eyes, and swimsuits.
Because bromine dissolves more slowly than chlorine, it’s easier to regulate and requires less frequent testing - giving you worry-free spa care with lasting clarity and comfort.
Features:
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Dual sanitizing action: minerals + low-level bromine
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Reduces bromine use by over 50% without sacrificing sanitizing power
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Gentle on skin, eyes, and swimwear
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Designed for use with FROG® Serene® Floating and In-Line Systems
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Mineral cartridge lasts up to 4 months and is set to #6 (wide open)
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Quick and easy replacement -recyclable after use
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Keeps water clean, clear, and perfectly balanced with less work