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FROG® Serene™ Replacement Bromine Cartridge for Hot Tubs – Prefilled 1 Pack (Compatible with FROG® Serene™ Floating Sanitizing System)

FROG® Serene™ Replacement Bromine Cartridge for Hot Tubs – Prefilled 1 Pack (Compatible with FROG® Serene™ Floating Sanitizing System)

Type: Sanitizer

SKU: ES-2535

Barcode: 722906038214

$15.95
$15.95
Shipping calculated at checkout.

Maintain clean, crystal-clear spa water with the FROG® Serene™ Replacement Bromine Cartridge (1 pack). Pre-filled and ready to go, this cartridge works with the FROG® Serene™ Floating or In-Line Sanitizing System to simplify hot tub maintenance. Each cartridge lasts approximately 2-4 weeks (depending on usage), and when paired with the FROG® Sanitizing Minerals, you can reduce bromine use up to 50%. Gentle on skin, swimsuits and spa surfaces, this swap-in solution means no mess, no measuring, and faster turnaround time between uses.

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FROG® Serene™ Replacement Bromine Cartridge for Hot Tubs – Prefilled 1 Pack (Compatible with FROG® Serene™ Floating Sanitizing System)

FROG® Serene™ Replacement Bromine Cartridge for Hot Tubs – Prefilled 1 Pack (Compatible with FROG® Serene™ Floating Sanitizing System)

$15.95
$15.95

  • Designed specifically for the FROG® Serene™ spa system, this pre-filled bromine cartridge snaps into either the floating or in-line dispenser and begins sanitizing immediately.

  • The cartridge lasts roughly 2 to 4 weeks, depending on spa size, usage and dial setting — saving you time and effort compared to traditional bromine tabs. 

  • When used together with the FROG® Sanitizing Minerals, overall bromine consumption can be reduced by up to 50%, while still providing effective sanitation for your hot tub water. 

  • The low-bromine, mineral-enhanced chemistry helps water feel softer, reduces skin and swimsuit bleaching, and offers a clearer, more comfortable soak experience.

  • Easy to install: Remove the spent cartridge, insert the new one, set the dial, and you’re ready to go — no measuring, scooping or guess-work required.

  • Compatible with hot tubs and spas that feature the FROG® Serene™ Floating or In-Line delivery system (for units up to approximately 600 gallons). Verify compatibility with your spa manufacturer.

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