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Home > Chemicals > Natural Chemistry > Phosphate Removers
Natural Chemistry PHOSfree Commercial Strength 3L
Natural Chemistry PHOSfree Commercial Strength 3L
Part #: 05236

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Product Specs

Extreme Phosphate Reduction

PhosFree Commercial is a highly concentrated formula that quickly reduces very high phosphate levels. It is the only patented formula that removes phosphates from the filter.

All 5 and 55 gallon containers are specifically designed for use with Natural Chemistrys Automatic Dosage Dispenser.

  • Compatible with all sanitizers and pool surfaces
  • Non-toxic and will not harm the environment
  • Reduces pool and filter maintenance


100ppb-1000ppb: 25oz (740mL) per 20,000 gallons (75,000L)

1000ppb & higher: 50oz (1.5L) per 20,000 gallons (75,000L)

How to Apply:

1. If pool has algae, follow dealer instructions to treat

2. Clean or backwash filter

3. For phosphate levels over 100ppb and under 1000ppb add 25 oz (740mL) per 20,000 gallons (75,000L)

4. For phosphate levels over 1000ppb add 50 oz (1.5L) per 20,000 gallons (75,000L)

5. Shake bottle well and with filter pump running add dose directly to skimmer

6. Clouding of pool water may occur when adding this product. After 24-48 hours, vacuum pool surface to filter


It is important to retest pool water following completion of each phosphate removal treatment. Repeat if necessary until phosphate level is below 100ppb Maintain phosphates once they are under 100ppb with a weekly maintenance of Pool Perfect+PHOSfree

Features & Benefits:

  • PHOSfree is formulated from lanthanum (rare earth compounds)
  • Specifically designed for high levels of phosphates
  • Highly concentrated