HTH Pool Care Shock Ultra — Granules, 6 pack (1 lb each) — Pool Shock Treatment to Sanitize and Clarify Water
Key item features
- Comprehensive Treatment: This all-in-one weekly Cal Hypo pool shock addresses 90% of common pool issues within 24 hours, restoring crystal clarity.
- Rapid Action: Quickly increases chlorine levels, preventing bacteria, algae, stains, and scale while softening and clarifying water.
- Advanced Formula: Sanitizes effectively without adding cyanuric acid (CYA), preventing overstabilization and chlorine lock for a brilliant sparkle.
- Visible Confirmation: Features a "Visible Blue Action" indicator, confirming the product is actively working in your pool.
- Universal Compatibility: Suitable for all pool types, including vinyl-lined pools and saltwater systems, without fading liners.
- Enhanced Filtration: Improves filtration and reduces skin and eye irritation, contributing to a more comfortable swimming experience.
Specs
- Chemical standard typeCalcium Hypochlorite Shock
- FormGranules
- Pool chemical typeChlorine Pool Chemicals
- Weight6 lb
- Free shipping
Free 30-day returns
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About this item
Product details
The amazing all-in-1 weekly formula in HTH® Shock Ultra increases chlorine levels, kills and prevents bacteria and algae, reduces eye and skin irritation, prevents stains from metals, prevents scale, improves filtration and softens water—all with results in 24 hours! Traditional chlorine products contain cyanuric acid (CYA). When too much CYA builds up, it can cause overstabilization or chlorine lock, cloud your water and cause algae growth. The fast-acting, fast-dissolving Cal Hypo based formula in HTH® Shock Ultra provides chlorination without adding extra CYA for a beautiful sparkle all season. It’s ideal for all pool surfaces and won't fade your liner.
How To Use HTH® Shock Ultra Follow the on-pack instructions according to your pool size to add HTH® Shock Ultra directly to swimming pool water or skimmer. The built-in Visible Blue Action lets you know it’s working! For best results, apply HTH® Shock Ultra as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4ppm.
- All-in-1 weekly Cal Hypo pool shock
- Use weekly to solve 90% of pool problems within 24 hours
- Restores crystal clarity in 24 hours
- Increases chlorine levels quickly
- Prevents bacteria, algae, stains & scale
- Softens & clarifies water
About HTH® Pool Care
HTH® was developed with the pool owner in mind. We know that maintaining your pool water can be a lot of work. That’s why we're here every step of the way, helping you clear the uncertainty from pool care. With economical, easy-to-use solutions, HTH® is designed to work hard so you're prepared to tackle whatever life throws in your pool. From balancing your water to treating green water, we offer a full line of pro.
Use this all-in-one powerhouse to quickly and easily increase chlorine levels, prevent bacteria, algae, stain and scale, reduce skin and eye irritation, improve filtration and soften your swimming pool water.
Visibly brilliant sparkle
This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock.
Visible Blue Action
This built-in feature lets you know the product is working!
Compatible with all swimming pools
This product is great for all pool types including vinyl-lined pools and salt water 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.
Warranty
Warranty information
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Customer ratings & reviews
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Showing 1-3 of 96 reviews
Verified Purchase
Great shock treatment
I've been using HTH Pool Care Ultra Shock Treatment for a while now, and it's been one of the most reliable pool products I've tried. It clears up cloudy water fast and does a great job knocking out algae, especially during the hotter months when the pool gets used a lot. What I like most is how easy it is to use—just follow the directions, broadcast it across the pool, and within a day you can already see a big difference. It dissolves well and doesn't leave a bunch of residue sitting on the bottom. I've noticed it helps keep the chlorine levels balanced and gives the water that clean, sparkling look without a strong chemical smell. It's also been dependable after heavy rain or when the water starts to look a little dull. Only downside is you do need to plan ahead since you typically have to wait a bit before swimming, but that's expected with most shock treatments. Overall, this is a solid, effective product that keeps my pool looking clear and clean. Definitely something I keep on hand all season.I've been using HTH Pool Care Ultra Shock Treatment for a while now, and it's been one of the most reliable pool products I've tried. It clears up cloudy water fast and does a great job knocking out algae, especially during the hotter months when the pool gets used a lot. What I like most is how easy it is to use—just follow the directions, broadcast it across the pool, and within a day you can already see a big difference. It dissolves well and doesn't leave a bunch of residue sitting on the bottom. I've noticed it helps keep the chlorine levels balanced and gives the water that clean, sparkling look without a strong chemical smell. It's also been dependable after heavy rain or when the water starts to look a little dull. Only downside is you do need to plan ahead since you typically have to wait a bit before swimming, but that's expected with most shock treatments. Overall, this is a solid, effective product that keeps my pool looking clear and clean. Definitely something I keep on hand all season.
Verified Purchase
item worked very well. easy to use.
Verified Purchase
this is a product I have used for years so I know I can depend on the usage results. The price was reasonable although it has been inflated due to national economic conditions. Only wish my retirement pension would keep up with the unrelenting and high inflation rate.
