FROG Serene Replacement Cartridge Kit for Hot Tub FROG Serene System (1 Mineral + 3 Bromine Cartridges) (01-14-3856)

The FROG Serene Replacement Cartridge Kit includes one mineral cartridge and three bromine cartridges for the FROG Serene Floating Sanitizing System. FROG Serene combines patented sanitizing minerals with a low level of bromine to kill bacteria two ways, reducing bromine use by up to 50 percent compared to bromine-only programs. The mineral cartridge lasts four months; each bromine cartridge lasts two to four weeks depending on hot tub use and bather load. Prefilled cartridges require no measuring or bulk chemical handling.

Specifications: Part Number: 01-14-3856 | Compatibility: FROG Serene Floating Sanitizing System | Kit Contents: 1 Mineral Cartridge + 3 Bromine Cartridges | Mineral Cartridge Life: 4 Months | Bromine Cartridge Life: 2-4 Weeks Each | Bromine Reduction: Up to 50% | Application: Hot Tubs | Is HazMat: Yes

• Kit includes one FROG Serene Mineral Cartridge and three FROG Serene Bromine Cartridges for the FROG Serene Floating Sanitizing System
• Patented mineral formula combines with a low level of bromine to kill bacteria two ways, reducing bromine use by up to 50 percent
• Mineral cartridge lasts four months; each bromine cartridge lasts two to four weeks depending on tub use and bather load
• Less bromine means water is gentler on skin, hair, and swimsuit fabrics, and hot tub surfaces see less chemical wear
• Prefilled cartridges require no measuring or bulk chemical handling; drop into the floater and the system handles the rest
• Fresh Mineral Water technology conditions hot tub water for a softer feel while maintaining effective sanitization
• FROG has more than 25 years of experience in water care; the Serene system is designed specifically for hot tubs

Shipping and Warranty

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Shipping: We ship within the continental US only, using USPS, FedEx, and UPS. Enjoy free shipping on all orders with a 1-day processing time. Delivery takes approximately 3-5 business days, and tracking information is emailed once your order ships. Currently, we do not offer international shipping.

Returns: You may return unused and unopened items within 30 days of delivery for a full refund or exchange. Please see our full Returns Policy here.

Warranty Assistance:
If the product is past the 30-day return window, we are still willing to assist with warranty claims. Please contact us for more information, and we will help guide you through the warranty process