--- product_id: 85751916 title: "BioGuard Back Up 2-1 Quart, Single, Proven Effective Algae Preventative, Non-Staining, Keeps Water Clean and Clear" brand: "bioguard" price: "₱5575" currency: PHP in_stock: true reviews_count: 8 category: "Bio Guard" url: https://www.desertcart.ph/products/85751916-bioguard-back-up-2-1-quart-single-proven-effective-algae store_origin: PH region: Philippines --- # Powerful wetting agent Sunlight-stable formula Boosts activity as temp rises BioGuard Back Up 2-1 Quart, Single, Proven Effective Algae Preventative, Non-Staining, Keeps Water Clean and Clear **Brand:** bioguard **Price:** ₱5575 **Availability:** ✅ In Stock ## Summary > 💦 Keep your pool crystal clear and algae-free—because your summer deserves the best splash! ## Quick Answers - **What is this?** BioGuard Back Up 2-1 Quart, Single, Proven Effective Algae Preventative, Non-Staining, Keeps Water Clean and Clear by bioguard - **How much does it cost?** ₱5575 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/85751916-bioguard-back-up-2-1-quart-single-proven-effective-algae) ## Best For - bioguard enthusiasts ## Why This Product - Trusted bioguard brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sun-Proof Stability:** Formula won’t evaporate or degrade under sunlight—reliable protection all season long. - • **Deep-Clean Penetration:** Powerful surfactant targets algae in tiny cracks and crevices where others can’t reach. - • **pH Neutral & Non-Staining:** Keeps your water chemistry balanced and your pool surfaces spotless. - • **Algae Defense on Autopilot:** Prevents algae growth before it starts with weekly use, so your pool stays pristine effortlessly. - • **Seamless System Compatibility:** Integrates perfectly with BioGuard’s 3-Step Care System for flexible, professional-grade pool maintenance. ## Overview BioGuard Back Up 2-1 Quart is a top-rated, non-staining algaecide designed to prevent a wide variety of algae growth. Its sunlight-stable, temperature-activated formula features a powerful wetting agent that penetrates hard-to-reach areas without affecting pH levels. Compatible with BioGuard’s 3-Step Care System, it offers reliable, easy-to-use pool protection trusted by thousands of pool owners. ## Description BioGuard Back Up Algaecide is BioGuard's most effective algae preventative. The highly effective formula prevents wide variety of algae growth. It's stable in sunlight and will not evaporate. The activity of this product increases as water temperature rises, which is when you need protection the most. Back Up has a powerful surfactant/wetting agent, which makes it able to work in the tiny cracks and crevices where algae starts. This product will not affect pH levels and is non-staining. Review: Just get it. - This stuff worked AMAZINGLY! I was sick and hadn't been able to clean the pool and when I went to clean it, there were a ton of water-boatman. Followed the directions and came back the next day to zero of the buggers in the pools as they had all died and were sucked into the filter. Review: Quality product - Quality product, this brand is great and good price, shipped quickly and on time ## Features - Highly Effective Algae Preventative: Our non-staining highly effective formula prevents a wide variety of algae growth. Weekly use of Back Up 2 prevents before it starts. It's stable in sunlight and will not evaporate. The activity of this product increases as water temperature rises, which is when you need protection the most. - Powerful Wetting Agent: Our Back Up 2 has a powerful surfactant agent, which makes it able to work in the tiny cracks and crevices where algae starts. It does not affect pH levels. - Add this product directly to the pool by pouring around the outside perimeter of the pool while filter and pump are in operation. This product is not recommended for use in pools that feature attached spas or intricate water features. - Compatible with the 3-Step BioGuard Care System: This product seamlessly integrates with either the 3-Step or Once-A-Week 3-Step BioGuard Care System, offering flexibility and convenience for pool owners. The addition of algicide is needed for proper pool maintenance. - Tested and Proven Effective: BioGuard products are known for delivering reliable results and making pool care easy. BioGuard carries an extensive line of pool solutions for all needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N1FBFZL | | Best Sellers Rank | #42,954 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #56 in Swimming Pool Algaecides | | Brand Name | BioGuard | | Customer Reviews | 4.8 4.8 out of 5 stars (528) | | Item Form | Liquid | | Item Type Name | Pool & Spa Supplies | | Item Weight | 2 Pounds | | Manufacturer | BioGuard | | Product Benefits | Controls Algae | | UPC | 017541000581 017541262668 017541652469 | | Unit Count | 32.0 Fluid Ounces | ## Product Details - **Brand:** BioGuard - **Item Form:** Liquid - **Item Weight:** 2 Pounds - **Product Benefits:** Controls Algae - **UPC:** 017541000581 017541262668 017541652469 ## Images ![BioGuard Back Up 2-1 Quart, Single, Proven Effective Algae Preventative, Non-Staining, Keeps Water Clean and Clear - Image 1](https://m.media-amazon.com/images/I/61i4Krrm3FL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Just get it. *by R***G on January 16, 2026* This stuff worked AMAZINGLY! I was sick and hadn't been able to clean the pool and when I went to clean it, there were a ton of water-boatman. Followed the directions and came back the next day to zero of the buggers in the pools as they had all died and were sucked into the filter. ### ⭐⭐⭐⭐⭐ Quality product *by M***8 on July 26, 2025* Quality product, this brand is great and good price, shipped quickly and on time ### ⭐⭐⭐⭐⭐ Bio guard chemicals *by L***. on August 4, 2025* I use bio guard pool chemicals. They work well. ## Frequently Bought Together - BioGuard Back Up 2-1 Quart, Single, Proven Effective Algae Preventative, Non-Staining, Keeps Water Clean and Clear - BioGuard Pool Complete Weekly 3L, 3-in-1 High-Intensity Clarifier & Cleaner, Prevents Waterline Buildup, Removes Phosphates, Keeps Water Clear --- ## 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.ph/products/85751916-bioguard-back-up-2-1-quart-single-proven-effective-algae](https://www.desertcart.ph/products/85751916-bioguard-back-up-2-1-quart-single-proven-effective-algae) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-05-20*