Frog Bromine Cartridge

The SPA FROG® In-Line System transforms standard hot tubs up to 600 gallons into a Fresh Mineral Water® spa system using a patented blend of minerals and a low dose of bromine. This advanced spa sanitising system eliminates the need for daily chlorination, reduces bromine use by up to 50%, and removes the harsh chlorine smell—delivering cleaner, more comfortable spa water with minimal effort.

Designed to integrate directly into your spa’s plumbing, SPA FROG® provides consistent, automatic water sanitisation using pre-filled mineral and bromine cartridges. Simply snap them in, adjust the dial, and enjoy crystal-clear spa water for weeks at a time.

🌿 Key Benefits

• Fresh Mineral Water® system for spas up to 600 gallons
• Uses minerals + low-dose bromine (no daily chlorine)
• Kills bacteria with up to 50% less bromine*
• No harsh chemical smell
• Pre-filled cartridges – no mess, no measuring
• Consistent, hands-off spa water care
• Bromine cartridges are recyclable

🔄 Cartridge Lifespan

• Mineral Cartridge: lasts up to 4 months or one drain cycle
• Bromine Cartridge: lasts 2–4 weeks, depending on usage
• Compatible with FROG Jump Start® for start-up shock when refilling

⚙️ How It Works

The SPA FROG® In-Line System is built into your spa’s plumbing with a clearly marked, top-loading cap. A simple twist removes the cartridge basket for quick replacement. The entire changeover takes less than a minute.

• Minerals run continuously for up to 4 months
• Bromine output is adjustable to suit spa usage
• Set once, relax more, maintain less