PROFESSIONAL-GRADE POOL CARE

Keep your pool
crystal clear, all season.

High-strength chlorinating tablets and pool shock that dissolve clean and kill fast, trusted by pool owners and priced for real life.

Shop tablets →Shop pool shock
99% active ingredientFree U.S. shipping
$239.99$174.99

Best Sellers

Why Pool Shark

  • Higher active strength

    99% active ingredient means fewer tablets, fewer refills, and faster results.

  • Dissolves clean

    Breaks down evenly, with no cloudy residue, no clogged feeders, and no white film.

  • Ships fast & free

    In stock and shipped fast, with free delivery across the continental U.S.
FREE TOOL

How many gallons is your pool?

Enter your pool dimensions and we will estimate the volume in gallons, so you can follow the directions on each product label with confidence.

Frequently asked questions

How much chlorine should I add?

Always follow the directions on your product label, which are based on your pool's gallons. Use the volume calculator above to find your gallons, then dose per the label.

What is the difference between tablets and shock?

Tablets are slow-dissolving and hold a steady chlorine level day to day. Shock is fast-acting and quickly clears cloudy water and kills algae. Most pools use both.

Do these work with saltwater pools?

Yes. Our tablets and shock work with saltwater systems as well as standard chlorine pools, spas, and hot tubs.

How fast do you ship?

Orders ship fast from U.S. warehouses, with free shipping on all U.S. orders. Weekends and holidays may add a day or two.

How should I store pool chemicals?

Keep them in a cool, dry, well-ventilated spot in the original sealed container, away from other chemicals. Never mix different products together.