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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Returns: Unused items in their original packaging may be returned within 30 days of delivery. To start a return, request a Return Merchandise Authorization (RMA) by emailing support@nationalpoolsupply.com or calling +1 978-222-0628 with your order number and the reason for the return (include photos if the item is defective, damaged, or incorrect). Once your RMA is approved, ship the item with your RMA number to: DHB Enterprises LLC / National Pool Supply, 30 Log Bridge Rd, Building 300, Unit 301, Middleton, MA 01949. Change-of-mind returns: you pay return shipping, and a 15% restocking fee applies; original shipping costs are not refunded. Defective, damaged, or incorrect items reported within 30 days of delivery are returned at no cost to you with a prepaid label, and no restocking fee applies. See our full Refund and Returns Policy for full details.

Manufacturer Warranty:
This product carries the manufacturer's warranty, where applicable. Warranty terms, coverage, and exclusions are set by the manufacturer. Warranty claims are filed directly with the manufacturer; we do not process warranty claims or offer a separate warranty of our own. If you need the manufacturer's contact details, contact us and we will share them. See our Warranty page for details.