Best Kleen Pool in 2026

Effectively kills algae

Protects pools for up to six months

Reduces chlorine demand by up to 50%

BENEFITS: Increases the chlorine level in swimming pools to kill bacteria and algae to keep your pool water clear and ready for fun all season long

USE: Apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm

COMPATIBILITY: Effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems

Keeping your swimming pool water clean and sanitary is one of the most important steps for pool maintenance. Let In The Swim’s 3 inch chlorine tablets for pools help. With a powerful active ingredient and slow dissolving formula, our chlorine tablets will keep your swimming pool water sanitary longer, saving you time and money.

Chlorine tablets contain 99% Trichloro-S-Triazinetrione (Trichlor) and 90% available chlorine, making it one of the strongest products on the market. Each 3 inch chlorine tablet is sun-stabilized which increases longevity in outdoor swimming pools.

Pool chlorine tablets help you avoid inconsistent chlorination, which is a common occurrence when using granular or liquid chlorine to sanitize a pool. Keeping your pH and alkalinity levels balanced helps with the effectiveness of pool chlorine in the water.

BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming in clean and clear water all season long

USE: Place a tab in pool skimmer, floater, or feeder for simple, DIY pool care; 1 tablet treats 10,000 gallons of water for up to a week

COMPATIBILITY: Vinyl-lined pools and saltwater systems

{EASY TO USE} Simply load your Hydrotools dispenser with chlorine or bromine tablets, and it will float in your pool or spa, saving you time & energy. This means you can focus on enjoying your pool or spa, rather than worrying about its maintenance.

{SMALL CAPACITY}: This mini dispenser is perfect for spas and can accommodate 1 inch chlorine or bromine tablets. This reduces the need for frequent refills, allowing you to spend more time enjoying and less time maintaining it.

{ADJUSTABLE] The dispenser is adjustable, so you can easily customize the flow rate to suit the unique requirements of your pool or spa. This means you can maintain the appropriate chemical balance no matter the size or shape of your pool.

Unsinkable Reliability – Keep your pool clean and pristine with your pool chlorine float from Cclear Pool! Your chlorine tablet holder won’t sink thanks to its foam filling and heavy-duty materials.

Safe to Splash – Chlorine stains at the bottom of your pool? Not with your Cclear Pool chlorine dispenser. Ensure chlorine tablets never fall out thanks to a secure, twist-lock cap.

Durable Design – Enjoy your pool chlorinator season after season. Unlike other chlorinators, your chlorine tablet dispenser features 40% thicker, UV-resistant walls that withstand wear and tear.

Kills bacteria

Kills and prevents all types of pool algae

Prevents corrosion, scale and stains

Powerful chlorine shock treatment that is great for regular maintenance

Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water

Main active ingredient is 68% Calcium Hypochlorite (Cal-Hypo) for quick sanitizing

Keeps pool pH balanced

Protects against eye and skin irritation

Reduces pool maintenance

Increases low Total Hardness levels in swimming pool water

Prevents corrosion, etching, and staining

Prevents pool surface damage

Helps chlorine last longer

Reduces sun's impact on chlorine

Perfect for salt pools, new pools and pools that use liquid chlorine

BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity

FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

Low-chlorine spa sanitizing cartridge maintains a consistent 0.5 � 1.0 ppm free chlorine level at all times

Shock only once a month and use up to 75% less chlorine

Floats in spa water and flips over when empty, indicating the SmartChlor cartridge needs replacing

Fast-acting Calcium Hypochlorite chlorine granules provide 65% minimum available chlorine for hard-hitting immediate results!

NOTE: This item cannot be shipped to Alaska or Hawaii (item will be removed from your order).

Fast-acting Calcium Hypochlorite Cal-Chlor chlorine granules provide 68% available chlorine for hard-hitting immediate results!

24 bags (1-pound each)

Fast-Acting Quick-Dissolving Swimming Pool Sanitizer

Kills bacteria, controls algae, and destroys organic contaminants in pools

CLEAR WATER FOR SAFE SWIMMING - Swimming in crystal clear water does not mean your skin has to suffer. The granular chlorine is 99% sodium diclor making a relaxing swim not as harsh.

LONG LASTING - Dichlor resists UV light, lasting longer than other types of chlorinating supplies due to built in stabilizer for your swimming pool, hot tub, or spa.

DISSOLVES QUICKLY - Add 1 oz of this cleaning chemical to your pool for every 5,000 gallons your pool contains, daily for the best quick water treatment maintenance.

NOTE: WE ARE CURRENTLY UNABLE TO SHIP SUPER ALGAECIDE TO THE STATE OF CALIFORNIA.. We apologize for the inconvenience.

Provides superior algae-fighting power with long lasting effects

Safe enough to swim directly after use

Long-Lasting Chlorine Tabs: Each tab is pre-stabilized against the sun's UV rays to prevent premature chlorine burn-off, making them last longer

Active Ingredients: Our pool tablets are pro-grade made from 99% Trichloro-S-Triazinetrione and 90% stabilized chlorine

Safe for the Family: Each 50lb bucket has a childproof locking lid for safety. Each 3 inch chlorine tablet for your pool comes individually wrapped to minimize odor, dust and skin contact

Non-foaming formula

Effective kill and preventative treatment

Suitable for all pools

Prevents metal stains and scale formation

Removes fresh metal stains including Iron and copper

Perfect for treating hard water

! quart bottle

Non-metallic, non-foaming, low-odor polymer-based algaecide

Kills all types of algae, including pink algae

Sanitizer, Clarifier, Stain Inhibitor, Algae Control, and Descale all in one 3" 8 oz. tab

Each 3" 8 oz. tab is individually wrapped, stabilized, and slow dissolving

Reduces the need for additional chemicals

Pool Shock and Super Chlorinator

70% available chlorine, Pool Shock and Super Chlorinator

Fast dissolving granular formula

Concentrated algaecide for all types of algae

Should be part of a regular pool maintenance program to prevent algae

Weekly addition of this product will reduce overall maintenance costs and give pools desired water quality

Product Does Not Cloud Pool

Ready To Use, No Mixing Required - Great Choice for Pool Closings

Perfect For Pressure Washing, Sanitation & Other Related Uses

Updated Formula-3 Active Ingredients

Eliminates all types of Pool Algae

Reduces chemical demand

Simply place in pump basket or skimmer basket

Eliminates all types of Algae

Reduces Chemicals

Prevents and treats pool algae

Built in clarifier

Non-foaming formula

Protects against algae and bacteria for water that stays clean, clear and free of visible algae

Kills all types of pool algae and kills bacteria

Protected against sunlight to last longer

Simply place in pump basket or skimmer basket

Eliminates all types of Algae

Reduces Chemicals