--- product_id: 193103897 title: "HTH 67033 Ultimate Algae Guard Swimming Pool Algaecide Cleanser, 1 qt" brand: "hth" price: "S$69" currency: SGD in_stock: true reviews_count: 8 category: "Hth" url: https://www.desertcart.sg/products/193103897-hth-67033-ultimate-algae-guard-swimming-pool-algaecide-cleanser-1 store_origin: SG region: Singapore --- # Swim almost immediately after application Non-foaming formula for crystal-clear water Up to 3 months algae protection HTH 67033 Ultimate Algae Guard Swimming Pool Algaecide Cleanser, 1 qt **Brand:** hth **Price:** S$69 **Availability:** ✅ In Stock ## Summary > 💦 Dive in now, algae-free for months—because your pool deserves the ultimate guard! ## Quick Answers - **What is this?** HTH 67033 Ultimate Algae Guard Swimming Pool Algaecide Cleanser, 1 qt by hth - **How much does it cost?** S$69 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/193103897-hth-67033-ultimate-algae-guard-swimming-pool-algaecide-cleanser-1) ## Best For - hth enthusiasts ## Why This Product - Trusted hth brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted brand legacy:** Backed by HTH’s century-long expertise in innovative water care solutions. - • **Effortless DIY pool care:** Simple direct application—no complicated steps or equipment needed. - • **Long-lasting algae defense:** Keeps your pool algae-free for up to 3 months, so you never miss a swim season. - • **Universal pool compatibility:** Perfect for all pool types, including saltwater systems, ensuring versatile protection. - • **Crystal-clear water, zero wait:** Non-foaming formula means no messy residue and you can dive in right after treatment. ## Overview HTH 67033 Ultimate Algae Guard is a powerful, non-foaming algaecide that kills and prevents all types of algae in swimming pools for up to 3 months. Compatible with saltwater and traditional pools, it allows immediate swimming post-application and is designed for easy, regular DIY use. Trusted by professionals and homeowners alike, it ensures crystal-clear, algae-free water season-long. ## Description The HTH Ultimate Algae Guard is formulated to prevent and kill all types of algae when used regularly in your swimming pool. Apply this non-foaming, all-purpose algaecide guard directly to pool water, and you’ll be able to swim almost immediately afterward, preventing algae growth for up to 3 months. Make sure that your pool stays crystal clear while preventing slimy surfaces and smells that algae can bring. About the Brand: HTH was developed with the consumer in mind, offering products that are both economical and powerful enough for the toughest jobs. Within HTH’s wide selection of products, we offer everything you need for your pool, from algaecides and deposit control formulas to non-chlorine shock treatments, powerful surface cleaners, clarifiers, enzyme-based cleaners, and more. If you like using HTH, check out some of the other similar brands from our parent company, Sigura. With brands like Applied Biochemists, Leisure Time, GLB, Spa Selections, and PooLife, Sigura has a long heritage and more than a century of experience in developing innovative water treatment solutions for use in pools, lakes, ponds, hot tubs, and more. At Sigura, we have an unparalleled passion, pride, and commitment to delivering superior water treatments that improve the environment and enhance the security, health, and safety of the global communities we serve. With our track record of innovation and simple, intuitive solutions that anticipate needs, Sigura customers feel more secure as they enjoy their pools, spas, ponds, and lakes. Review: 3+ months alge - We've been using this for years now. 3+ months algae free inground pool. Water clear from opening in Spring to closing in the Fall on one dose. Review: Exactly As Described - Exactly As Described. Works great for algae. I recommend ## Features - BENEFITS: Kills all types of algae and prevents future algae blooms in your swimming pool for up to 3 months so you can get back to enjoying your summertime fun - USE: Apply directly to the pool regularly for easy DIY pool care; For best results, use with other HTH pool care products - COMPATIBILITY: Great for a variety of swimming pool types, including saltwater systems - FEATURES: Non-foaming algaecide formula destroys algae fast for crystal clear water; Swim almost immediately after applying algaecide to your pool - INCLUDES: One 1-qt container of Ultimate Algae Guard for your swimming pool water - Power Source Type: Manual ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083X52DZ7 | | Best Sellers Rank | #119,758 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #98 in Swimming Pool Algaecides | | Brand Name | HTH | | Customer Reviews | 4.5 4.5 out of 5 stars (669) | | Included Components | HTH 67033 Ultimate Algae Guard Swimming Pool Algaecide Cleanser, 1 qt | | Item Form | Liquid | | Item Type Name | Swimming Pool Algaecide Cleanser | | Item Weight | 1.1 Kilograms | | Manufacturer | Innovative Water Care | | Manufacturer Warranty Description | Warranty | | Product Benefits | Destroys Algae | | UPC | 073187670335 | | Unit Count | 32.0 Fluid Ounces | ## Product Details - **Brand:** HTH - **Item Form:** Liquid - **Item Weight:** 1.1 Kilograms - **Product Benefits:** Destroys Algae - **UPC:** 073187670335 ## Images ![HTH 67033 Ultimate Algae Guard Swimming Pool Algaecide Cleanser, 1 qt - Image 1](https://m.media-amazon.com/images/I/61glcTpaH5L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 3+ months alge *by T***E on November 12, 2025* We've been using this for years now. 3+ months algae free inground pool. Water clear from opening in Spring to closing in the Fall on one dose. ### ⭐⭐⭐⭐⭐ Exactly As Described *by M***. on March 15, 2026* Exactly As Described. Works great for algae. I recommend ### ⭐⭐⭐⭐⭐ Pool maintenance game changer! *by J***E on August 20, 2023* My pool was getting on the green side pretty frequently even with the right chlorine levels, vacuuming, etc. I purchased a Spring start up kit originally which included algaecide. But this stuff...WOW!!! It cleared the pool up overnight! It's been crystal clear ever since :) ## Frequently Bought Together - HTH 67033 Ultimate Algae Guard Swimming Pool Algaecide Cleanser, 1 qt - HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack) - HTH 67067 Swimming Pool Care Clarifier Advanced - Crystal Clear Water in 24 Hours --- ## 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.sg/products/193103897-hth-67033-ultimate-algae-guard-swimming-pool-algaecide-cleanser-1](https://www.desertcart.sg/products/193103897-hth-67033-ultimate-algae-guard-swimming-pool-algaecide-cleanser-1) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-05-18*