HTH™ Pool Care Shock Ultra: All-in-1 Cal Hypo Pool Shock
HTH™ Pool Care Shock Ultra is an advanced pool shock that makes weekly upkeep simple and certain.
- This all-in-1 Cal-hypo swimming pool shock treatment boosts chlorine fast, fights bacteria and algae, and helps reduce eye and skin irritation without adding cyanuric acid (CYA) that can lead to chlorine lock.
- It also helps prevent stain and scale, improves filtration, and softens water for a visibly brilliant sparkle within 24 hours.
- Safe for vinyl liners and ideal for all pool types, this dependable pool shock treatment keeps your routine strong and your water confidently clear.
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 pool super shock 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.
How to use
HTH™ Shock Ultra: All-in-1 Cal Hypo Pool Shock
1. Add Directly To Water OR Skimmer
Follow the on-pack instructions according to your swimming pool size. Make sure to use a clean, dry scoop.
Follow the on-pack instructions according to your swimming pool size. Make sure to use a clean, dry scoop.
2. Repeat Weekly
For best results, use HTH™ Shock Ultra as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4ppm.
For best results, use HTH™ Shock Ultra as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4ppm.