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prevent algae and keep pH neutral so you can reduce chlorine up to 50%
Calcium Plus is used to raise calcium hardness in swimming pool water
Mega Quad Cartridge Filter
It efficiently removes particles as small as 2 microns on the first pass
It dissolves more quickly and completely and keeps pool water sparkling clean and clear with less work
Spa Frog Serene Mineral Cartridge 3-Pack 01-14-3812 YGroup_Signature-RTL prevent algae and keep pHThe Spa Frog Mineral Cartridge controls bacteria and keeps pH levels neutral, which reduces your chlorine or bromine use up to 50% and makes spa water feel silky soft and look crystal clear. Mineral cartridges are easily adjusted to meet the sanitizing needs of virtually any size spa. Replace the mineral cartridge every four months when you drain and refill your spa. Less chemicals equals softer and more enjoyable water.
