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Natural Chemistry PhosFree Commercial Strength 3 Liter

Availability: In Stock

Regular Price: $74.99

Sale Price $59.99

You Save: $15.00  (20%)

Quick Overview

Natural Chemistry PhosFree is now available in commercial strength! It is the only patented product that removes phosphates on the filter. This commercial strength formula removes more ppb of phosphates per application than any other competitive product. PHOSfree Commercial Strength provides professional service companies an excellent tool for reducing the time spent trying to lower very high phosphate levels reliably. It will also work well on large commercial and institutional swimming pools.


PHOSfree Commercial Strength is now available in a 3 times stronger formula. It works well to reduce extremely high phosphate levels in problematic pools. Phosphates are the limiting nutrient for algae growth. Reduce phosphates to near zero and enjoy an algae free pool! Natural Chemistry unconditionally guarantees it.

  • Specifically designed for large water application
  • Works on both the filter and in pool for maximum phosphate removal
  • Strongest formulation available on the market
  • Works with all pool types
  • Removes high levels of phosphates quickly
  • Easy to use - simply add to skimmer
  • Less vacuuming and cleaning
  • Only effective way to remove phosphates through the filter
Additional Information
Delivery Time 2-5 Business Days
Manufacturer Natural Chemistry
Technical Specs
Directions for use: 
PHOSfree Commercial Strength
NOTE: For DE filters, add recommended dose to the pool water NOT the skimmer.
1. Clean or backwash filter
2. Apply appropriate dose as directed by dosage chart below
3. Shake bottle well and with filter pump running add dose directly to the skimmer
4. Clouding of pool water may occur when adding this product. After 24-48 hours,
    vacuum pool surface to filter
Dosage Chart
Phosphate Level                Dosage                Per Gallons
1000ppb                             1/2 L                    10,000 gallons
2000ppb                             1 L                       10,000 gallons
1000ppb                             1 L                       20,000 gallons
2000ppb                             2L                        20,000 gallons
Do not add more than 1L (33.9oz) at a time
For higher dosages add 1L (33.9oz) every 24 hours until desired result is obtained
Note: It is important to retest pool water following completion of each phosphate removal treatment.
Repeat if necessary, until phosphate level is below 100ppb
SKU NAT-50-5232 / NC05236EACH
Manufacturer Part # 05236
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