--- product_id: 12748353 title: "United Chemical's Yellow Treat Mustard Algaecide for Swimming Pool – Super Strength Algae Killer for Mustard & Yellow Algae in Saltwater & Chlorine, Above & Inground Pool Treatment | YT2-2LB" brand: "united chemical" price: "€ 85.37" currency: EUR in_stock: true category: "United Chemical" url: https://www.desertcart.hr/products/12748353-united-chemicals-yellow-treat-mustard-algaecide-for-swimming-pool-super store_origin: HR region: Croatia --- # Fast-acting algae killer Treats 10,000 gallons per 5 oz Works in all pool types United Chemical's Yellow Treat Mustard Algaecide for Swimming Pool – Super Strength Algae Killer for Mustard & Yellow Algae in Saltwater & Chlorine, Above & Inground Pool Treatment | YT2-2LB **Brand:** united chemical **Price:** € 85.37 **Availability:** ✅ In Stock ## Summary > 💦 Say goodbye to yellow algae and hello to crystal-clear pool vibes! ## Quick Answers - **What is this?** United Chemical's Yellow Treat Mustard Algaecide for Swimming Pool – Super Strength Algae Killer for Mustard & Yellow Algae in Saltwater & Chlorine, Above & Inground Pool Treatment | YT2-2LB by united chemical - **How much does it cost?** € 85.37 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/12748353-united-chemicals-yellow-treat-mustard-algaecide-for-swimming-pool-super) ## Best For - united chemical enthusiasts ## Why This Product - Trusted united chemical brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal Clear Results:** Breaks down organic debris to restore sparkling clarity fast - • **Ultra-Efficient Dosage:** Just 5 ounces treats up to 10,000 gallons of pool water 💧 - • **Rapid Algae Eradication:** Kills stubborn yellow & mustard algae in as little as 24 hours ⚡ - • **Pro-Grade Pool Care at Home:** Commercial-strength formula trusted by homeowners and pros alike - • **Universal Pool Compatibility:** Safe and effective for saltwater, chlorine, freshwater, above & inground pools 🏊‍♂️ ## Overview United Chemical's Yellow Treat is a powerful, fast-acting algaecide designed specifically to eliminate yellow and mustard algae in all pool types. With just 5 ounces treating 10,000 gallons, it delivers professional-grade results quickly and safely, restoring pool clarity without staining or surface damage. ## Description Yellow Treat is the original mustard algae killer. Introduced in 1981, Yellow Treat has become the most trusted answer to yellow and mustard swimming pool algae. Just 5 ounces (one bag or one capful) per 10,000 gallons has the power to get rid of the most stubborn yellow and mustard algae. Yellow Treat’s powerful formula kills mustard algae fast. In as little as 24 hours it will turn your yellow pool back to clean. Yellow Treat also requires less shocking to get the job done. Saving you time, money and hassle. And while Yellow Treat is tough on algae – it's not on surfaces. Meaning it’s safe for any type of pool. It also contains zero ingredients that stain. Keeping your pool looking beautiful after the algae is gone. ## Features - POWERFUL MUSTARD & YELLOW ALGAE KILLER - Targets stubborn yellow and mustard algae blooms fast. Yellow Treat dissolves directly in pool water and works quickly to restore clarity without harsh side effects. Just 5 ounces treats 10,000 gallons. - EASY-TO-USE YELLOW ALGAECIDE FOR ALL POOL TYPES - Just pour, brush and shock. Works with saltwater, chlorine, and freshwater systems. No complicated prep—perfect for quick treatments or regular pool maintenance. - TREATS ABOVE GROUND & INGROUND POOLS - Whether you're maintaining a small backyard setup or a large inground pool, this formula handles both with ease. Trusted by homeowners and pool professionals alike. - CLEARS CLOUDY WATER FAST - Yellow Treat helps break down organic debris while enhancing pool clarity, so you get visibly cleaner water, faster. - COMMERCIAL-STRENGTH RESULTS AT HOME - Skip the guesswork. Yellow Treat delivers pro-grade results fast and easy, helping you win the fight against yellow algae and enjoy sparkling pool water all season. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001P41TLO | | Best Sellers Rank | #1,648 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #33 in Swimming Pool Chlorine | | Brand Name | United Chemical | | Customer Reviews | 4.3 4.3 out of 5 stars (2,043) | | Item Form | Granular | | Item Weight | 0.27 g | | Manufacturer | United Chemicals | | Manufacturer Part Number | YTC12EACH | | Model Number | YTC12EACH | | Number of Items | 1 | | Number of Packs | 1 | | Package Size Name | 2 lb. bottle | | Product Benefits | Controls Algae | | UPC | 730928001000 | | Unit Count | 32 Ounce | ## Product Details - **Brand:** United Chemical - **Item Form:** Granular - **Item Weight:** 0.27 g - **Product Benefits:** Controls Algae - **UPC:** 730928001000 ## Images ![United Chemical's Yellow Treat Mustard Algaecide for Swimming Pool – Super Strength Algae Killer for Mustard & Yellow Algae in Saltwater & Chlorine, Above & Inground Pool Treatment | YT2-2LB - Image 1](https://m.media-amazon.com/images/I/61Os0jeKsDL.jpg) ![United Chemical's Yellow Treat Mustard Algaecide for Swimming Pool – Super Strength Algae Killer for Mustard & Yellow Algae in Saltwater & Chlorine, Above & Inground Pool Treatment | YT2-2LB - Image 2](https://m.media-amazon.com/images/I/81sxerN8qxL.jpg) ![United Chemical's Yellow Treat Mustard Algaecide for Swimming Pool – Super Strength Algae Killer for Mustard & Yellow Algae in Saltwater & Chlorine, Above & Inground Pool Treatment | YT2-2LB - Image 3](https://m.media-amazon.com/images/I/71piJT-AugL.jpg) ## Frequently Bought Together - United Chemicals Yellow Treat® 2 Pound Container - HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack) - Clorox® Pool&Spa™ Swimming Pool Chlorine Stabilizer, Helps Chlorine Last Longer, Saltwater Pool Compatible, 4LB (Pack of 1) --- ## 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.hr/products/12748353-united-chemicals-yellow-treat-mustard-algaecide-for-swimming-pool-super](https://www.desertcart.hr/products/12748353-united-chemicals-yellow-treat-mustard-algaecide-for-swimming-pool-super) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-13*