FROG Serene Mineral & Bromine Replacement Cartridges for Hot Tubs – Complete Sanitizing System

FROG Serene Replacement Cartridges

Enhance your hot tub experience with FROG Serene replacement cartridges, designed for use with the Floating or In-Line System.

Features:

• Complete sanitizing system using low-level bromine and FROG Sanitizing Minerals to effectively kill bacteria.
• Reduce bromine use by up to 50% with FROG Sanitizing Minerals.
• Includes 4 Bromine cartridges, each lasting up to 4 weeks, suitable for a 600-gallon hot tub.
• Comes with 1 FROG Sanitizing Mineral Cartridge, lasting 4 months, for softer and more comfortable water.
• Prefilled cartridges eliminate the need for handling or measuring bromine, ensuring easy and stress-free maintenance.