--- product_id: 453483556 title: "HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack)" brand: "hth" price: "€ 13.79" currency: EUR in_stock: true reviews_count: 9 category: "Hth" url: https://www.desertcart.hr/products/453483556-hth-52031-swimming-pool-care-shock-swimming-pool-chlorinator-boosts store_origin: HR region: Croatia --- # Fast-acting formula Compatible with all pools Prevents bacteria & algae HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) **Brand:** hth **Price:** € 13.79 **Availability:** ✅ In Stock ## Summary > 🏊‍♂️ Dive into clarity with HTH – your pool's best friend! ## Quick Answers - **What is this?** HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) by hth - **How much does it cost?** € 13.79 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/453483556-hth-52031-swimming-pool-care-shock-swimming-pool-chlorinator-boosts) ## 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 - • **Multi-Use Power:** Tackle 90% of pool problems with a single solution. - • **CYA-Free Formula:** Enjoy a sparkling pool without the risk of chlorine lock. - • **Shock & Sanitize:** Transform your pool into a crystal-clear oasis in just 24 hours! - • **Weekly Maintenance:** Keep your pool pristine with easy weekly applications. - • **Universal Compatibility:** Perfect for vinyl, saltwater, and all pool types! ## Overview HTH52031 Swimming Pool Care Shock is a powerful Cal Hypo formula designed to shock treat, sanitize, and clarify your swimming pool water. This 13.3oz product effectively prevents bacteria and algae, ensuring a safe and enjoyable swimming experience. Fast-acting and compatible with all pool types, it’s the ultimate solution for maintaining crystal-clear water. ## Description The HTH Multi-Use Shock Treatment is the perfect solution for keeping your swimming pool water sparkling clean. This convenient product shock treats, sanitizes, clarifies, and helps prevent bacteria and algae in your pool water. Its Cal Hypo based formula is fast-acting and fast-dissolving, solving 90% of pool water problems within 24 hours. The formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock, creating a visibly brilliant sparkle. It's compatible with all pool types, including vinyl-lined pools and saltwater systems. For best results, combine with HTH 6-Way Test Strips to test and balance your pool water twice weekly. Keep your pool water crystal clear with HTH Multi-Use Shock Treatment. Review: Great item to have - Does the job! Nice handy package for easy use. Works well and keeps your water clear! Review: WORTH EVERY CENT! - POOL SHOCK WORKS GREAT!! ## Features - BENEFIT: Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product - FEATURES: Multi-use pool shock with Cal Hypo; Use weekly to solve 90% of pool water problems within 24 hours; Fast-acting and fast-dissolving - VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock - COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems - YOU’RE ALL CLEAR WITH HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09R841BDQ | | Best Sellers Rank | #43 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Swimming Pool Chlorine | | Brand | HTH | | Brand Name | HTH | | Customer Reviews | 4.8 out of 5 stars 3,910 Reviews | | Included Components | HTH 52031 Swimming Pool Care Shock | | Item Form | Powder | | Item Type Name | Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula | | Item Weight | 13.3 Ounces | | Manufacturer | Innovative Water Care | | Manufacturer Part Number | 52031 | | Manufacturer Warranty Description | Warranty | | Model Number | 52031 | | Number of Items | 1 | | Product Benefits | pevents bacteria and algae | | UPC | 073187520319 | | Unit Count | 13.3 Ounce | ## Product Details - **Brand:** HTH - **Item Form:** Powder - **Item Weight:** 13.3 Ounces - **Product Benefits:** pevents bacteria and algae - **UPC:** 073187520319 ## Images ![HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) - Image 1](https://m.media-amazon.com/images/I/717mEgTJD-L.jpg) ![HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) - Image 2](https://m.media-amazon.com/images/I/81Hn4ydyrQL.jpg) ![HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) - Image 3](https://m.media-amazon.com/images/I/71CG5-7UkkL.jpg) ![HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) - Image 4](https://m.media-amazon.com/images/I/81v6v8TEYIL.jpg) ![HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) - Image 5](https://m.media-amazon.com/images/I/712ryct1DsL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: How much of this bag do I put in a 1100 gallon pool?** A: This product is intended for a single use in larger volume pools (10,000-12,000 gallons). It cannot be re-closed so it is not recommended for your pool. For your sized pool, please look for shock in a resealable container. You will find the HTH Pool Care Shock in 1.5 or 5 pound containers that you can take out the 1-2 ounces that you will need for your sized pool. If you have any questions about these products, feel free to contact our Consumer Engagement Team at 866-484-7665. **Q: How long do you have to wait after using this shock, to be able to swim?** A: In general the rule is to wait 1 hour per pound of granular product that is added to give the product time to circulate. When adding Shock or Chlorine, also please test your water to ensure that the chlorine level is between 1-4 ppm for safe swimming. When you have other questions, feel free to give us a call at 866-484-7665. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great item to have *by J***V on April 23, 2026* Does the job! Nice handy package for easy use. Works well and keeps your water clear! ### ⭐⭐⭐⭐⭐ WORTH EVERY CENT! *by J***R on May 2, 2026* POOL SHOCK WORKS GREAT!! ### ⭐⭐⭐⭐⭐ Chlorine keep you clean *by V***N on April 6, 2026* I’m very pleased with the HTH 52030B Swimming Pool Care Shock! This product does exactly what it promises—quickly boosts chlorine levels and gets the pool back to looking clean and clear in no time. I’ve used it regularly, and it works fast to clear up cloudy water and keep everything sanitized. It’s especially helpful after heavy pool use or after a storm when the water needs a quick refresh. Just one treatment makes a noticeable difference. The application is simple and straightforward, which makes pool maintenance a lot less stressful. I also like that it’s reliable—you can count on consistent results every time. Overall, this is a must-have for keeping your pool in great condition. Effective, easy to use, and a great addition to any pool care routine. Highly recommend! ## Frequently Bought Together - HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack) - HTH 42049 Pool Care 1" Chlorine Tabs, Swimming Pool Sanitizer with Added Clarifier - Eliminates Bacteria & Algae, Makes Water Clean & Crystal Clear, Sanitizes & Protects - Slow Dissolving, 1.5 lbs - EASYTEST 7-Way Pool Test Strips, 150 Strips Water Chemical Testing for Hot tub and Spa, Accurate Test Bromine, Total Alkalinity, pH, Free Chlorine, Total Hardness, Cyanuric Acid, and Total Chlorine --- ## 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/453483556-hth-52031-swimming-pool-care-shock-swimming-pool-chlorinator-boosts](https://www.desertcart.hr/products/453483556-hth-52031-swimming-pool-care-shock-swimming-pool-chlorinator-boosts) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*