Natural Chemistry Phosfree 1 inch with each pad changing color

with each pad changing color to indicate exact levels

It removes phosphates up to 2

and reinsert easily without special tools

scale inhibitor

Wide temperature tolerance — -10°F to 425°F (-23°C to 218°C) stands up to heat from motors and cold starts

Natural Chemistry Phosfree 1 inch with each pad changing colorNatural 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.