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Universal sanitizer compatibility works with chlorine
Reinforced frame: metal-backed construction resists bending for frequent use
The Pleatco PTL18P4 Filter Cartridge is made of the finest filtration fabric
With Stain Drop No
making it ideal for chlorine
Natural Chemistry Phosfree Free Flow Core Universal sanitizer compatibility works withNatural Chemistry's Phosfree enables pool owners to drop phosphate levels in your pool to almost nothing. Phosfree is unconditionally guaranteed by Natural Chemistry to prevent future phosphate build up. This treatment will improve filter performance and reduce overall pool maintenance, yet accomplishes these things without resorting to the usage of harsh chemicals, remaining 100% non toxic.
