HOTSPRING HOTUB Mineral Silver Ion Cartridge Sticks (3 Gray) – 12-Month Crystal-Clear Spa Water (Not for Salt/IQ Systems)

Effortless, year‑round spa water you can trust

HOTSPRING HOTUB Mineral Silver Ion Cartridge Sticks deliver continuous ion-based care to traditional hot tubs. Featuring a controlled 1.05% Ag+ release, they help maintain a bright, clear appearance and a refreshing spa feel without requiring daily chemical adjustments.

Designed for non-salt systems, these sticks drop into the filter standpipe as a seamless upgrade to your existing routine. A three-stick bundle provides a full year of steady treatment, with each stick formulated to last about four months under typical use.

What makes this solution fit your spa routine

• 12-month supply: three sticks, four months each, reducing refill trips and clutter
• Effortless installation: simply drop the mineral ion cartridge into the filter standpipe
• Universal traditional spa compatibility: fits spas with 1-1/4" filter holes and 6.5"–16" cartridge length
• Broad coverage: designed for spas up to 600 gallons, providing continuous care between changes
• Advanced mineral ion technology: a controlled-release approach maintains activity across temperatures and usage levels
• Cost-efficient maintenance: fewer daily chemical adjustments save time and reduce ongoing costs

Real-life use and benefits you may notice

• Crystal-clear water with a refreshed feel and balanced aroma
• Lower reliance on traditional chemical balancing for routine care
• Consistent water quality through seasonal variations and higher use
• Simple, predictable maintenance that supports longer, enjoyable spa sessions

Compatibility note: these sticks are NOT compatible with salt water systems, salt generators, or IQ smart monitoring systems. They are intended for traditional spa setups, offering a straightforward approach to spa maintenance without salt-based equipment.