--- product_id: 11375982 title: "SpaGuard Stain & Scale Control for Spas & Hot Tubs, 1 Quart, Single, Concentrated Formula, Prevents Scale Formation, Removes Scale Build-up" brand: "spaguard" price: "$83.88" currency: USD in_stock: true reviews_count: 9 category: "Spa Guard" url: https://www.desertcart.us/products/11375982-spaguard-stain-and-scale-control-for-spas-and-hot-tubs store_origin: US region: United States of America --- # Maintains crystal-clear water Powerful liquid formula Prevents scale & stains SpaGuard Stain & Scale Control for Spas & Hot Tubs, 1 Quart, Single, Concentrated Formula, Prevents Scale Formation, Removes Scale Build-up **Brand:** spaguard **Price:** $83.88 **Availability:** ✅ In Stock ## Summary > 🛁 Keep your spa flawless and inviting—because your relaxation deserves the best! ## Quick Answers - **What is this?** SpaGuard Stain & Scale Control for Spas & Hot Tubs, 1 Quart, Single, Concentrated Formula, Prevents Scale Formation, Removes Scale Build-up by spaguard - **How much does it cost?** $83.88 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11375982-spaguard-stain-and-scale-control-for-spas-and-hot-tubs) ## 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 - • **Stain Eraser:** Effectively removes fresh metal stains, keeping your spa pristine and inviting. - • **Natural & Safe:** Natural brown liquid formula that works powerfully without harsh chemicals, perfect for your wellness sanctuary. - • **Trusted SpaShield:** Highly rated with 4.6 stars and a top 3 rank in pool stain removers—join thousands of satisfied spa owners. - • **Scale-Free Serenity:** Prevents calcium scale buildup to protect your spa’s surfaces and circulation system. - • **Effortless Weekly Care:** Just add once a week to maintain spotless, clear water without hassle. ## Overview SpaGuard Spa Stain & Scale Control is a 1-quart liquid solution designed to prevent calcium scale buildup and remove fresh metal stains in spas and hot tubs. Its powerful formula bonds with calcium ions to maintain clear water and protect spa surfaces and circulation systems. Easy weekly application and a strong customer rating make it a trusted choice for spa maintenance. ## 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 | #3,067 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3 in Swimming Pool Stain Removers | | Brand Name | SpaGuard | | Customer Reviews | 4.6 4.6 out of 5 stars (2,861) | | Item Form | Liquid | | Item Type Name | Spa Stain/Scale Control | | Item Weight | 2 Pounds | | Manufacturer | BioLab | | Manufacturer Warranty Description | Returns are not accepted on opened or used products and subject to a 20% restocking fee. | | Product Benefits | Prevents Scales | | 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 Stain & Scale Control for Spas & Hot Tubs, 1 Quart, Single, Concentrated Formula, Prevents Scale Formation, Removes Scale Build-up - 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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/11375982-spaguard-stain-and-scale-control-for-spas-and-hot-tubs](https://www.desertcart.us/products/11375982-spaguard-stain-and-scale-control-for-spas-and-hot-tubs) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-26*