SKU: 78621643029

Natural Chemistry - Phos Free Max (1 qt)

$40.49 $44.99
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 9 - Oct 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Natural Chemistry - Phos Free Max (1 qt)Description The Natural Chemistry PHOSfree MAX is a powerful liquid phosphate remover that is designed to reliably treat resident and commercial swimming pools. Use this product to effectively treat high levels of phosphates to help reduce problems in your swimming pool. Phosphate levels will drop to near zero in less than 24 hours. Powerful phosphate remover Treat resident and commercial pools Remove all phosphates in less than 24 hours Dosage Add 1

 

Description

The Natural Chemistry PHOSfree MAX is a powerful liquid phosphate remover that is designed to reliably treat resident and commercial swimming pools. Use this product to effectively treat high levels of phosphates to help reduce problems in your swimming pool. Phosphate levels will drop to near zero in less than 24 hours.

  • Powerful phosphate remover
  • Treat resident and commercial pools
  • Remove all phosphates in less than 24 hours

Dosage

Add 1 quart for up to 20,000 gallons* of pool water.

*Note: For pools smaller than 10,000 gallons, do not exceed 16 fl oz in one treatment.

Directions

Initial High-Phosphate Treatment:

  1. Clean or backwash filter.
  2. Calculate the amount of product required using the dosage instructions. Pour PHOSfree MAX in the swimming pool, distributing it over as wide an area as possible.

Important: It is normal for this product to cause pool cloudiness, indicating that phosphates are being removed. The duration of the cloudiness will depend on phosphate levels and pool equipment, and can sometimes last up to 48 hours. While pool water is cloudy, swimming should not occur so plan your treatment accordingly.

  1. Run your filter system continuously for at least 24 hours.
  2. If filter pressure increases 10 psi over normal, clean or backwash the filter.
  3. After 48 hours, test the phosphate level with a phosphate test kit approved for swimming pool use. If it is needed, re-apply PHOSfree MAX.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78621643029

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4.7 ★★★★★
Based on 15 reviews
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Product Reviews
L
Verified Purchase
Lori K
Lexington, US
★★★★★ 5
Good fit
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
S
Verified Purchase
SanJoseCA
Battle Creek, US
★★★★★ 5
Looks exactly like the original car filter, but for a lot less than from the car dealership
Looks as good as the OEM filter and at a better price than at the car dealership. Hopefully it should do the filtering job.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
T
Verified Purchase
Taj
Grantham, US
★★★★★ 5
Fits 2017 and 2018 Honda CRV 1.5l
Easy and perfect fit for 2017 and 2018 Honda CRV with 1.5l engines. You need a Phillips screwdriver to remove the 4 screws holding the airbox. After that you just remove the old one and put the new one in the same orientation and put the screws back on. Helps the engine breathe which can result in slightly more power and mpg. I recommend changing every few years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2025
M
mike R
Battle Creek, US
★★★★★ 4
Looks identical to the OEM
Changed this filter in a matter of 3 -4 minutes. The fit and feel seems identical to the Honda OEM filter---feels just as heavy and fit exactly. For $10 it's a bargain. I drove about 20 miles after installing, also with no problems. 4 stars because I want to give a long term report... I will report a few months from now to advise how it held up under North East conditions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2023
C
Verified Purchase
craigerino
Phoenix, US
★★★★★ 5
3rd purchase very good!
Great filter. Easy install with a Phillips screwdriver. 5 min and an amateur can do it. This is my 3rd purchase and will save so much money vs dealer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026

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