---
product_id: 17405429
title: "Pool Mate Spa 1-2801SPA Hot Tub Calcium Increaser, 1-Pack"
brand: "pool mate spa"
price: "€ 65.74"
currency: EUR
in_stock: true
category: "Lawn & Patio"
url: https://www.desertcart.hr/products/17405429-pool-mate-spa-1-2801spa-hot-tub-calcium-increaser-1
store_origin: HR
region: Croatia
---

# Pool Mate Spa 1-2801SPA Hot Tub Calcium Increaser, 1-Pack

**Brand:** pool mate spa
**Price:** € 65.74
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Pool Mate Spa 1-2801SPA Hot Tub Calcium Increaser, 1-Pack by pool mate spa
- **How much does it cost?** € 65.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/17405429-pool-mate-spa-1-2801spa-hot-tub-calcium-increaser-1)

## Best For

- pool mate spa enthusiasts

## Why This Product

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

## Description

Pool Mate Spa Increase Calcium increases the calcium hardness in spas and hot tubs. The ideal calcium level for spas is between 150-300 parts per million. When calcium levels are too low, spa water can be foamy and corrosive to equipment. When calcium levels are too high, you will see scale formation on the spa's interior and the water will become cloudy. Use a test kit or test strip to test your spa calcium levels.

## Features

- Increases Calcium Hardness in Spa Water
- Low hardness will etch plaster and corrode spa equipment
- The ideal hardness level is 150-300 ppm
- Use 1 oz. per 100 gallons to increase hardness by 7 ppm
- Use a test kit or test strip to test your spa calcium levels

## Images

![Pool Mate Spa 1-2801SPA Hot Tub Calcium Increaser, 1-Pack - Image 1](http://ecx.images-amazon.com/images/I/41C4T9CyVaL.jpg)

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**Shop now:** [https://www.desertcart.hr/products/17405429-pool-mate-spa-1-2801spa-hot-tub-calcium-increaser-1](https://www.desertcart.hr/products/17405429-pool-mate-spa-1-2801spa-hot-tub-calcium-increaser-1)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-25*