St. Cyr Alkalinity Increase 25lbs Skimmer Plugs & Protectors Total Hardness

Total Hardness

Compatible With: PAL

or lasts as long

Lasts 6 months with easy install date ring for tracking replacements

St. Cyr Alkalinity Increase 25lbs Skimmer Plugs & Protectors Total HardnessSt. Cyr Alkalinity Increase 25lbs (No Returns On Chemicals) Local Pick Up Only Middleton MA Location St. Cyr Alkalinity Increase 25lbs is a granular product used to raise total alkalinity in spa or hot tub water, stabilizing pH levels, preventing corrosion, and ensuring comfortable, balanced water for soaking. Its active ingredient is typically sodium bicarbonate, which provides precise control over alkalinity without introducing unwanted additives.