---
product_id: 11375982
title: "SpaGuard Spa Stain/Scale Control - Quart"
brand: "spaguard"
price: "S$72"
currency: SGD
in_stock: true
reviews_count: 9
category: "Spa Guard"
url: https://www.desertcart.sg/products/11375982-spaguard-spa-stain-scale-control-quart
store_origin: SG
region: Singapore
---

# 32 fl oz powerful liquid Protects spa circulation system Prevents scale & stains SpaGuard Spa Stain/Scale Control - Quart

**Brand:** spaguard
**Price:** S$72
**Availability:** ✅ In Stock

## Summary

> 🛁 Keep your spa flawless and envy-worthy all year round!

## Quick Answers

- **What is this?** SpaGuard Spa Stain/Scale Control - Quart by spaguard
- **How much does it cost?** S$72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/11375982-spaguard-spa-stain-scale-control-quart)

## 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

- • **Metal Stain Eraser:** Removes fresh metal stains before they set in
- • **Spa Surface Savior:** Safeguards your spa’s finish from damaging scale deposits
- • **Trusted & Top-Ranked:** Highly rated with 4.6 stars and #2 in pool stain removers
- • **Crystal Clear Every Time:** Prevents calcium scale buildup for sparkling spa water
- • **Effortless Weekly Protection:** Just add once a week to keep your spa pristine

## Overview

SpaGuard Spa Stain & Scale Control is a 32-ounce liquid formula designed to prevent calcium scale buildup and remove fresh metal stains in spas and hot tubs. By bonding with calcium ions, it protects both spa surfaces and circulation systems, ensuring crystal-clear water and extending the life of your spa. Trusted by thousands with a 4.6-star rating, it’s the go-to solution for maintaining a pristine spa environment with minimal effort.

## Description

Scale or calcium carbonate build-up can cause damage to your spa surface as well as your circulation system. SpaGuard Stain & Scale Control does a great job of preventing scale by introducing powerful agents that bond to problem-causing calcium ions in your spa water.

Review: Stain guard - Working well, have no stains or any buildup. We are are well water. Slightly hard water.
Review: Stain/scale control - Good product and fair price

## Features

- SpaGuard Spa Stain & Scale Control - 1 Quart
- Prevents scale formation and cloudy water due to high calcium levels
- Removes some scale buildup on spa surface
- Removes relatively fresh metal stains from spa surfaces
- Simply add this powerful liquid formula weekly to safeguard your spa or hot tub from these threats.Color of the liquid is natural brown

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006MHSE26 |
| Best Sellers Rank | #1,695 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2 in Swimming Pool Stain Removers |
| Brand | SpaGuard |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,853) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 2 pounds |
| Item model number | BIO42356 |
| Manufacturer | BioLab |
| Number of Items | 1 |
| Product Benefits | Prevents Scales |
| Product Dimensions | 6 x 2 x 2 inches |
| UPC | 017541619271 017541619325 |
| Unit Count | 32.0 Fluid Ounces |

## Product Details

- **Brand:** SpaGuard
- **Item Form:** Liquid
- **Item Weight:** 2 Pounds
- **Product Benefits:** Prevents Scales
- **UPC:** 017541619271 017541619325

## Images

![SpaGuard Spa Stain/Scale Control - Quart - Image 1](https://m.media-amazon.com/images/I/61tR6E4vzYL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this considered a sequestrant?**
A: This product is considered a sequestering agent, yes. It prevents the formation of scale on your spa's shell and equipment.

**Q: What color is the solution supposed to be? My first bottle I bought was a light blue however the new bottle I got is almost a red rust color.**
A: Like an opaque brown. Previous packaging for this packaging had been partially see-through, so it may have been dyed blue for a better look before, but now the plastic  blocks all views so the color can be natural.

**Q: What are the actual ingredients in this product? Stain and Scale Control?**
A: The active ingredients are primarily acids. Including phosphoric acid, etidronic acid, and Butenedioic. These are at least the dangerous chems listed on the MSDS sheet.  The bottle simply reads "multiple active ingredients."
It's safe to use in your pool as directed, but don't drink it or get it in your eyes.  If it gets on your skin, minor irritation may occur if not washed off as soon as possible.

**Q: how often should this be used?**
A: I have used 2 oz a week in a 375 tub for over 20 years...last tub lasted 19 years

## Customer Reviews

### ⭐⭐⭐⭐⭐ Stain guard
*by T***N on December 14, 2025*

Working well, have no stains or any buildup. We are are well water. Slightly hard water.

### ⭐⭐⭐⭐⭐ Stain/scale control
*by B***R on January 20, 2026*

Good product and fair price

### ⭐⭐⭐⭐⭐ SpaGuard
*by L***Z on July 15, 2025*

Excellent product works well.

## Frequently Bought Together

- SpaGuard Spa Stain/Scale Control - Quart
- SpaGuard Spa Water Clarifier - 1 Pint, Packaging may vary
- SpaGuard Enhanced Shock (2 lb)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-20*