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🛁 Elevate your spa game—because your relaxation deserves flawless water!
SpaGuard Spa Calcium Hardness Increaser is a granular formula designed to raise calcium hardness levels by 25ppm per tablespoon per 100 gallons, preventing corrosion and plaster etching in spas. It ensures optimal water balance (200-400 ppm calcium) without causing scale or cloudiness, backed by SpaGuard’s trusted expertise and a 4.7-star customer rating.
| ASIN | B007ZUD2IU |
| Best Sellers Rank | #1,648 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #13 in Swimming Pool Balancers |
| Brand | SpaGuard |
| Brand Name | SpaGuard |
| Customer Reviews | 4.7 out of 5 stars 3,831 Reviews |
| Item Form | Powder |
| Item Weight | 12 Ounces |
| Manufacturer | SpaGuard |
| Manufacturer Part Number | 42257BIO |
| Manufacturer Warranty Description | Returns are not accepted on opened or used items and are subject to a 20% restocking fee. |
| Model Number | BIO42257 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Prevents Corrosion |
| UPC | 017541612326 017541646123 |
| Unit Count | 12.0 Ounce |
E**S
Good product
Good price and product works well !
M**P
Great product
This chemical line works great in my hot tub
W**D
Works great
Works great
J**K
Easy to add.
Easy to add and calculate based on the hardness scale on the bottle.
A**R
Great Value
same as i would pay in spa house, but 8 dollars cheaper.
G**G
Hard water, or not hard. That is the question. The answer?
Chlorine, bromine pH, and hardness. My spa has given me a science refresher, that showed me I wasn’t sure I actually learned that science to begin with. And, since pool service providers only care for spas if you have a pool, I have no pool service. Anyway, a couple of carefully worded questions to AI led me to what I needed, and the test strips are happy! The water is clear, the chemicals dissolved with out issue or smell. Five stars
C**Y
Review
Good prod
M**D
Works as advertised
Works as it should. Would buy this again.
Trustpilot
2 days ago
2 weeks ago