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In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming…

$116.99
From the brand In The Swim sells swimming pool chemicals chlorine shock opening winter kits cleanersIn The Swim sells swimming pool chemicals chlorine shock opening winter kits cleaners In The Swim logoIn The Swim logo

In The Swim was founded in 1982 by a husband and wife team. Shipping chlorine from the back of their garage and taking orders on their front porch, they began to have a vision that this could be something big.

40 years later, In The Swim remains one of the country's largest online retailers for pool chemicals, supplies and equipment. Thanks for shopping with us!

Opening Kits and Chemicals

Solar Covers and Reels

Chlorine and Shock

Water Clarifiers

Alternative Sanitizers

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Algaecides and Clarifiers

Bromine and Water Stabilizers

Stain Removers and Cleaners

Deck Paint and Patch

Kids jumping into above ground poolKids jumping into above ground pool

Paint and Primer

Spa Covers and Chemicals

Leaf Nets and Chemicals

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Closing Kits and Winter Covers


Eliminate bacteria, algae, and other organic contaminants, keeping your pool clean and clear all season long.
99% Trichloro-S-Triazinetrione and 90% available stabilized chlorine.
Dissolve slower helping you to avoid inconsistent chlorination.
Sun-stabilized protecting it from the sun's harmful rays.
Ideal size for floaters or automatic feeders.