---
product_id: 427419453
title: "Spa Calcium Hardness Increaser (12 oz) (3 Pack)"
brand: "spaguard"
price: "49781 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/427419453-spa-calcium-hardness-increaser-12-oz-3-pack
store_origin: HU
region: Hungary
---

# Prevents corrosion 25 ppm increase 12 oz Granular Spa Calcium Hardness Increaser (12 oz) (3 Pack)

**Brand:** spaguard
**Price:** 49781 Ft
**Availability:** ✅ In Stock

## Summary

> 💦 Dive into luxury with SpaGuard's Calcium Hardness Increaser!

## Quick Answers

- **What is this?** Spa Calcium Hardness Increaser (12 oz) (3 Pack) by spaguard
- **How much does it cost?** 49781 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/427419453-spa-calcium-hardness-increaser-12-oz-3-pack)

## Best For

- spaguard enthusiasts

## Why This Product

- Trusted spaguard brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Convenient 3-Pack:** Stock up and save—perfect for regular maintenance!
- • **Quality You Can Trust:** Manufactured by BioGuard, a leader in spa care.
- • **Effortless Application:** Just 1 tablespoon per 100 gallons for a hassle-free solution.
- • **Protect Your Investment:** Safeguard your equipment from corrosion and extend its lifespan.
- • **Elevate Your Spa Experience:** Transform your spa into a sanctuary with optimal calcium levels.

## Overview

SpaGuard Spa Calcium Hardness Increaser is a granular calcium chloride solution designed to enhance your spa experience by preventing equipment corrosion and plaster etching. Each 12 oz pack effectively raises calcium hardness by 25 ppm with just a tablespoon per 100 gallons, ensuring your spa remains in pristine condition. Manufactured by BioGuard in the USA, this 3-pack offers convenience and quality for all your spa maintenance needs.

## Description

SpaGuard Spa Calcium Hardness Increaser (12 oz) (3 Pack)

## Features

- SpaGuard Calcium Hardness Increaser (12oz) (3 Pack)
- Granular Calcium Chloride
- Prevents corrosion of equipment due to low calcium hardness
- Prevents etching of plaster due to low calcium hardness
- 1 tablespoon per 100 gallons increases calcium hardness - 25 ppm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BioGuard |
| Country of Origin | USA |
| Item model number | 42258BIO |
| Package Dimensions | 21.01 x 20.5 x 7.01 cm; 1.13 kg |
| ASIN | B01M4S1IO9 |

## Images

![Spa Calcium Hardness Increaser (12 oz) (3 Pack) - Image 1](https://m.media-amazon.com/images/I/61xCiosRphL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: How long after adding this can you go in**
A: It is calcium chloride.  It is a salt that dissolves quickly; toss it in, turn on the jets and let it dissolve for a few minutes, then enjoy.

**Q: How do you put this in? I am looking at adding a half cup of this to my 210 gallon hot tub if I did my math right? Is that too much all at once.**
A: You should check with your spa provider as the baseline hardness of the water should be factored in.  A total of 6 tablespoons would be a reasonable first dose but need to only add 2 tablespoons at a time about 2 hours apart.  Can put it in the filter area but I have had no troubles just adding it to the deepest part of the tub as long as there is circulation.  You can always add more over time depending on the test strip levels.  You cannot work backwards so start low and work up.

**Q: Is this something most people need to have on hand?  Just purchased first hot tub**
A: You may or may not, depending on your water. You need to test your water first. I never needed a calcium increaser for my hot tub in upstate NY, but need it for my swim spa in Oregon.

**Q: Does this product contain Calcium Hypochlorites or Trichlors?**
A: The chemical is calcium chloride.

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-05-01*