Product Overview

Natural Chemistry PHOSfree® is one of the industry’s leading solutions for reducing and controlling phosphate levels in swimming pools. Phosphates are a primary food source for algae, and when levels are high, pool water becomes harder to sanitize and more prone to algae growth.

This 3-liter bottle (Model 15121NCM) provides a powerful, non-toxic formula that quickly and effectively removes phosphates from pool water—resulting in clearer, cleaner water that’s easier to maintain. PHOSfree is safe for all pool surfaces and works seamlessly with chlorine, saltwater, and mineral sanitizing systems.

Ideal For

• Residential and commercial pools with elevated phosphate levels

• Preventing algae growth and improving sanitizer efficiency

• Pools using chlorine, saltwater, or mineral systems

• Regular maintenance or treating problem water conditions

• Owners seeking cleaner, clearer, low-maintenance pool water

Key Features

• Powerful Phosphate Reduction: Quickly lowers phosphate levels to help prevent algae.

• Enhances Sanitizer Efficiency: Reduces workload on chlorine and other sanitizers.

• Non-Toxic Formula: Safe for swimmers, pets, and all pool surfaces.

• Easy-To-Use: Simply add to the skimmer or follow your pool professional’s guidance.

• Improves Water Clarity: Helps achieve sparkling, polished pool water.

• Ideal for Weekly or Monthly Maintenance: Perfect for routine phosphate control.

• Large 3L Bottle: Economical size for multiple treatments or larger pools.

Benefits

• Reduces Algae Risk: Phosphates are algae fuel—remove them, and algae struggles to grow.

• Cleaner, Easier Water Care: Makes balancing chemicals simpler and more predictable.

• Lower Chlorine Demand: Less chlorine needed to maintain proper sanitation.

• Supports Long-Term Water Health: Keeps the pool looking and feeling better with consistent use.

• Professional-Grade Formula: Trusted by pool service technicians nationwide.

Customer Q&A

Q: How do I use PHOSfree?
A: Typically, it is added directly to the skimmer with the pump running. Always follow label instructions or professional guidance.

Q: How often should I apply it?
A: For maintenance, many pools benefit from weekly or monthly use depending on phosphate levels.

Q: Is it compatible with saltwater pools?
A: Yes—PHOSfree works with all sanitizing systems, including saltwater generators.

Q: Will it cloud the pool?
A: Some temporary cloudiness may occur as phosphates bind and filter out; this is normal.

Q: Can this be used alongside clarifiers or enzymes?
A: Yes. It is compatible with most Natural Chemistry products, including enzyme-based formulas.

Specifications

• Model Number: 15121NCM

• Brand: Natural Chemistry

• Product Type: Phosphate Remover

• Volume: 3 Liters

• Primary Function: Reduces phosphates to prevent algae and improve sanitizer efficiency

• Compatibility: All pool sanitizing systems (chlorine, saltwater, bromine, mineral)

• Application: Add to skimmer or per label directions