FreshWater Phosphate Remover Type_Topside Control Dimensions 13 3/8" x 5

Dimensions 13 3/8" x 5 7/8"

Less chlorine

designed for fill water with a calcium hardness reading between roughly 100 and 150 ppm

not replaceable

5 lb container handles roughly six months of routine sanitation for a typical 400-gallon spa with normal bather load

FreshWater Phosphate Remover Type_Topside Control Dimensions 13 3/8" x 5FreshWater Phosphate Remover is the treatment side of the phosphate equation the concentrated liquid formula that pulls phosphates out of your spa water once a test confirms they're above the 300 ppb threshold. A single 16 fl oz bottle handles multiple initial treatments and many weeks of maintenance dosing for a typical residential spa. Why phosphates need a dedicated remover product: phosphates don't dissipate, don't get filtered out by a cartridge,