PoolRx+ Spa Algaecide Unit – New Formula with Silver, Up to 6 Months, 100–400 gal

Smart, long‑lasting algae control for your spa

PoolRx+ Spa Algaecide Unit from the trusted PoolRx brand offers a refreshed formula designed for 100–400 gallon spas. The new blend features three active ingredients—Copper Sulfate, Zinc Sulfate, and Silver Nitrate—that work together to create multi‑layer protection against spa algae. This product carries EPA registration and NSF/ANSI 50 certification, underscoring a commitment to quality and reliable performance for recreational water care.

Beyond algae control, PoolRx+ aims to reduce the amount of chemical input you need to maintain clear water and a simple maintenance routine. When used as part of your spa care plan, you may experience easier upkeep and consistent water quality across seasons, with the unit designed to be effective for up to six months per treatment.

What makes PoolRx+ stand out

• New formula with 3 active ingredients
• Eliminates all types of spa algae
• Reduces chemical demand
• Effective for up to 6 months
• NSF/ANSI 50 Certified

Usage and versatility

To use, place the unit directly into spa water. Re‑treatment intervals may vary based on factors like bather load and splash out. If you drain and refill your spa, replace the unit to maintain consistent results, or if you notice algae signs or water appears dull—even when chlorine reads 0.5–1.0 ppm. PoolRx+ works with any sanitizer system, including Chlorine, Salt, UV, and Ozone, and is suitable for spas from 100 to 400 gallons.

Real‑world benefits you might notice

Owners commonly report easier maintenance, clearer water, and fewer routine adjustments between drain/refill cycles. The yellow and white unit is designed for easy identification in your spa cabinet, helping you stay on top of maintenance without hassle. Results can vary based on usage, water volume, and splash-out, so consider PoolRx+ as a practical option to simplify spa care rather than a guaranteed outcome.