--- product_id: 371975981 title: "PoolRx 101003 4-Pack Blue Units Swimming Pool Algaecide, 4 Pack" brand: "pool rx" price: "R8542" currency: ZAR in_stock: true category: "Pool Rx" url: https://www.desertcart.co.za/products/371975981-poolrx-101003-4-pack-blue-units-swimming-pool-algaecide-4 store_origin: ZA region: South Africa --- # Supports 7,500-20,000 gallon pools Continuous mineral rejuvenation Up to 6 months algae protection PoolRx 101003 4-Pack Blue Units Swimming Pool Algaecide, 4 Pack **Brand:** pool rx **Price:** R8542 **Availability:** ✅ In Stock ## Summary > 💦 Keep your pool pristine and your summer stress-free—because algae waits for no one! ## Quick Answers - **What is this?** PoolRx 101003 4-Pack Blue Units Swimming Pool Algaecide, 4 Pack by pool rx - **How much does it cost?** R8542 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/371975981-poolrx-101003-4-pack-blue-units-swimming-pool-algaecide-4) ## Best For - pool rx enthusiasts ## Why This Product - Trusted pool rx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Chemical Smart:** Reduces chlorine demand by boosting its effectiveness, so you use less and swim cleaner. - • **Salt Pool Friendly:** Works seamlessly with saltwater pools, making maintenance simpler and more efficient. - • **Broad Pool Compatibility:** Each unit treats pools from 7,500 to 20,000 gallons—perfect for any size backyard oasis. - • **Effortless Algae Defense:** Just drop in the pump or skimmer basket and forget algae for up to 6 months. - • **Mineral-Powered Longevity:** Proprietary mineral blend continuously rejuvenates with every filtration cycle for lasting clarity. ## Overview PoolRx 101003 4-Pack Blue Units are advanced algaecide tablets designed to simplify pool care by continuously releasing a proprietary mineral blend that eliminates all types of algae. Each unit supports pools between 7,500 and 20,000 gallons, providing up to 6 months of effective algae control while reducing chemical usage. Easy to use and compatible with saltwater pools, PoolRx enhances chlorine efficiency and rejuvenates minerals with every filtration cycle, ensuring crystal-clear water season after season. ## Description The 4pack of PoolRx Blue Units is just that. 4 individual units, each PoolRx Blue Unit supports 7, 500 - 20, 000 gallon pools. PoolRx is an easy to use algaecide that reduces chemical demand, improves water quality, lasts for up to 6 months, and really works! PoolRx contains a proprietary blend of minerals that continuously and effectively eliminates algae. Simply pick the correct sized PoolRx unit based on total gallons, clean your filter first, then, drop the PoolRx unit into the pump basket or skimmer. The specially treated alloy cylinder is packed with the PoolRx mineral formulation. These minerals immediately dissolve out of the cylinder and form a stable residual throughout the pool water for up to 6 months. The minerals eliminate the algae while freeing up low levels of chlorine to be more active and productive in the water. During the pools filtration process the minerals are rejuvenated every time they return and pass through the cylinder. PoolRx works synergistically with a constant low level of chlorine. Residential (0. 5-1. 0ppm); Commercial (1. 0-5. 5ppm) If needed, a PoolRx Booster The (part# 102001) can be added for longer seasons, larger pools or tough condition. The PoolRx unit is effective in rejuvenating minerals for up to 1 year in the water, so start with a new PoolRx unit at the beginning of each season for best results. PoolRx has been simplifying pool and spa care since 1994 and can support any size body of water. PoolRx is also ideal for Salt Pools. ## Features - Simply place in pump basket or skimmer basket - Eliminates all types of Algae - Reduces Chemicals - Effective for up to 6 months - Simplifies Pool and Spa Care ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00K65T1CW | | Brand Name | Pool RX | | Customer Reviews | 4.7 4.7 out of 5 stars (362) | | Included Components | PoolRx 4pack of Blue Units, each supports 7,500-20,000 gallons, and directions for use | | Item Form | Granular | | Item Type Name | Swimming Pool Algaecide | | Item Weight | 13.1 Ounces | | Manufacturer | PoolRx | | Manufacturer Part Number | 101003 | | Model Number | 101003 | | Number of Items | 4 | | Product Benefits | Controls Algae | | UPC | 705532371023 700553010036 | | Unit Count | 4 Count | ## Product Details - **Brand:** Pool RX - **Item form:** Granular - **Item weight:** 13.1 Ounces - **Product benefits:** Controls Algae - **UPC:** 705532371023 700553010036 ## Images ![PoolRx 101003 4-Pack Blue Units Swimming Pool Algaecide, 4 Pack - Image 1](https://m.media-amazon.com/images/I/61PQLL+9hYL.jpg) ## Available Options This product comes in different **Pattern, Size** options. ## Frequently Bought Together - Pool RX 101003 Swimming Pool Algaecide, 4 Pack, Blue - PoolRX+ Pool Unit 20k-30k gallons (4-Pack) - PoolRx Booster Minerals for Pool, 7500 to 20000 gallons,4 Pack --- ## 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.co.za/products/371975981-poolrx-101003-4-pack-blue-units-swimming-pool-algaecide-4](https://www.desertcart.co.za/products/371975981-poolrx-101003-4-pack-blue-units-swimming-pool-algaecide-4) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-10*