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Field-adjustable stops ensure Precise positioning while simplifying use
or 72 hours for 3 consecutive cycles
Pentair 520722
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Natural Chemistry PHOSfree 67.6 Ounce yard-guard-deluxe-plus-winter-covers Field-adjustable stops ensure Precise positioningNatural Chemistry PHOSfree 67. 6 Ounce (2 Litre) PhOSfree reduces phosphate levels in your swimming pool quickly without causing the pool water to become cloudy. This special formula use lanthanum (rare earth) compounds that when added to the skimmer, provides a thin coating of PHOSfree on the filter media. Phosphates are then reduced as the water flows through the filter. PHOSfree Features: Effectively reduces phosphates in swimming pool water
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