Best 1 Inch Pool Chlorine of 2025

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1 Inch Pool Chlorine is an essential chemical for maintaining a clean and healthy swimming pool. These small, circular tablets dissolve slowly and evenly, releasing a steady stream of chlorine into the water. The tablets are designed to be used in a pool skimmer, automatic chlorinator, or floating dispenser, making them easy to use and distribute. 1 Inch Pool Chlorine tablets are formulated to kill bacteria, control algae growth, and oxidize contaminants, ensuring that your pool stays crystal clear and safe for swimming. With regular use, these tablets can help to reduce maintenance time and costs, while keeping your pool water fresh and inviting.
At a Glance: Our Top Picks
Top 10 1 Inch Pool Chlorine
HTH Pool Care 1" Chlorine Tabs
HTH Pool Care 1" Chlorine Tabs are a chlorine-based sanitizer that kills bacteria and algae in swimming pools. These slow-dissolving tabs are sun-protected for a longer chlorine life, and are compatible with all pool types. Customers appreciate the convenience of not having to open each individually wrapped tab, and the product's ability to keep chlorine levels correct.
Rx Clear 1-Inch Chlorine Tablets for Pools and Spas
Make pool maintenance a breeze with the Rx Clear 1-Inch Stabilized Chlorine Tablets. These slow-dissolving tablets are adaptable to your pool or hot tub, with 90% available chlorine and 99% Trichlor. Simply add the tablets to your floating chlorinator or inline/offline chlorinator and let the pump do the work. Each tablet weighs 0.5 oz and is UV protected. With a low price and high quality, Rx Clear is a trusted brand for pool supplies and accessories.
XtremeClear 1" Chlorine Tabs
XtremeClear Chlorine Tabs are designed for a variety of water systems, including above-ground pools, hot tubs, and spas. These slow-dissolving tablets last up to a week, providing you with convenient and consistent sanitation. They are compatible with all pool types, including saltwater systems, allowing you to use them easily in floaters or skimmer baskets. Each tab is pre-stabilized, protecting against UV rays to ensure longer-lasting effectiveness. With these tablets, you can save money by reducing the frequency of water changes, making pool maintenance simpler and more efficient.
GLB 71250A Sanitizing Tablets
GLB Chlorine Tablets are slow-dissolving 1/2-ounce tablets that provide powerful chlorine sanitation for your pool. They are ideal for use in floaters, feeders, and skimmers. These tablets are EPA registered and feature 89-Percent available stabilized chlorine. The compatibility with chlorine makes it easy to use. The slow-dissolving feature ensures consistent and long-lasting sanitation, saving you time and effort. The 2-pound packaging provides convenience in storage and handling. With these tablets, you can keep your pool water crystal clear and safe for swimming.
C3 1" Stabilized Chlorine Tablets
C3 Chlorine Tablets are designed to keep your pool water clean and safe. Each tablet contains 99% Trichloro-S-Triazinetrione, providing a powerful 90% available stabilized chlorine that effectively sanitizes your pool. The slow-dissolving formula means you won’t have to worry about constant maintenance, as it releases chlorine gradually. Individually wrapped for convenience, these tablets are perfect for use in floating feeders, skimmers, and automatic chlorinators. Enjoy a crystal-clear swimming experience without the hassle of frequent chlorine additions.
HTH 1” Chlorinating Tablets for Clean and Clear Pool Water
Keep your pool water clean and clear with HTH 1” Chlorinating Tablets. These tablets sanitize and protect your pool water, killing bacteria and algae for up to a week with a built-in algaecide. The tablets dissolve slowly, making it easy to use and providing a steady application of chlorine to your indoor or outdoor pool. It is sun-protected, ensuring the lengthening of the chlorine life. These tablets can be used in vinyl pools and saltwater systems, as well as smaller type pools.
ClearView 1 Inch Chlorine Tablets
ClearView Chlorine Tablets are designed to keep your pool water clean and healthy. These tablets effectively eliminate harmful bacteria and prevent algae growth, ensuring a safe swimming environment. With a formulation that provides 99% Tri-chlor and 90% available chlorine, just one tablet treats up to 1,000 gallons of water, making maintenance easy. Their slow-dissolving formula lasts up to a week, giving you longer-lasting results. Additionally, these tablets are compatible with all pool types, including vinyl-lined and saltwater systems, so you can use them effortlessly in various setups.
XtremeClear 2-Pack Chlorine Tabs
XtremeClear Chlorine Tabs are a versatile solution for all your pool and spa sanitation needs. These slow-dissolving tablets are designed to effectively sanitize above-ground pools, hot tubs, and even toilets, lasting up to a week. They are pre-stabilized to protect against UV rays, ensuring that your chlorine remains effective for longer periods. Whether you have a saltwater system or a traditional pool, these 1-inch tabs are compatible and can be used in various dispensers. Plus, with just one tab, you can save approximately 5,000 gallons of water, making it a cost-effective choice for pool maintenance.
In The Swim 1" Pool Chlorine Tablets - 25lb
Keep your pool sanitized and ready for use with In The Swim 1" Pool Chlorine Tablets. These tablets are powerful and effective, with 90% available stabilized chlorine and 98.6% Trichloro-S-Triazinetrione (TriChlor). The 1-inch tablets are perfect for smaller pools and spas, and can be used with floaters and automatic chemical feeders. With each tablet weighing 0.5 oz, you can easily regulate the amount of chlorine you need to keep your pool clean and safe for swimming.
C3 Stabilized Chlorine Tablets
The C3 Chlorine Tablets are designed to keep your swimming pool clean and safe. With 99% Trichloro-S-Triazinetrione and 90% available stabilized chlorine, these slow-dissolving tablets are perfect for maintaining water clarity. Individually wrapped for convenience, they make handling and storage easy. You can use them in floating feeders, skimmers, or automatic chlorinators, ensuring that your pool remains properly sanitized without hassle. Each 15-pound bucket provides a reliable supply for both above-ground and inground pools, allowing you to enjoy a refreshing swim without worrying about water quality.
Frequently Asked Questions (FAQs)
1. Can you use 1 inch chlorine tablets for pools?
Yes, 1-inch chlorine tablets can be used for pools, especially smaller pools and spas. They are preferred in these cases because the dosage is more controllable. It is important to consider the size of your pool and its chlorine demand to determine the appropriate amount of chlorine needed. Use a floater or chemical feeder to dispense 1-inch chlorine tablets for consistent sanitization.
2. What are 1 inch chlorine tablets good for?
1-inch chlorine tablets have multiple functions. They effectively control algae growth in the pool, protect pool surfaces and equipment from scale and corrosion, and contain stabilizer for long-lasting cleanliness. These tablets are particularly useful for sanitizing smaller pools, as they allow for better control over the chlorine levels in the water.
3. How long do 1 inch chlorine tablets last in a pool?
1-inch chlorine tablets, such as HTH® Chlorine Tabs, dissolve slowly and have a lasting effect in the pool. They can keep the water clear and protect against bacteria, algae, and other organisms. With their sun protection feature, these tablets can last up to one week in the pool.
4. Do I need 1 inch or 3 inch chlorine tablets?
The choice between 1-inch and 3-inch chlorine tablets depends on the size of your pool. 3-inch tablets are typically recommended for larger pools with a volume of 5,000 gallons or more. On the other hand, 1-inch tablets are better suited for smaller pools that are less than 5,000 gallons.
5. Why are 1 chlorine tablets so expensive?
The increase in price for 1-inch chlorine tablets can be attributed to a chlorine shortage. In 2020, a major chlorine manufacturing plant in Louisiana was destroyed by hurricane Laura, leading to a 40% reduction in the US chlorine tablet supply. Additionally, another key factory in New Jersey caught fire in 2022, further impacting the supply and contributing to the increased cost of the tablets.
6. How many 1-inch chlorine tablets for 5000 gallon pool?
As a general rule, one 3-inch chlorine tablet is sufficient to sanitize 5,000 gallons of pool water. However, 1-inch tablets dissolve more quickly due to their smaller size and surface area. It is recommended to adjust the dosage accordingly when using 1-inch tablets to ensure proper sanitization for a 5,000-gallon pool.
During our 1 inch pool chlorine research, we found 24 1 inch pool chlorine products and shortlisted 10 quality products. We collected and analyzed 66,031 customer reviews through our big data system to write the 1 inch pool chlorine list. We found that most customers choose 1 inch pool chlorine with an average price of $21.44.
The 1 inch pool chlorine are available for purchase. We have researched hundreds of brands and picked the top brands of 1 inch pool chlorine, including HTH, Rx Clear, XtremepowerUS, GLB, CLEARVIEW. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Bryan Hicks is a professional gardener and a writer who lives in North Texas with his family and his dog. Bryan has spent more than half of his life surrounded by garden products. He has extensive experience in garden makeovers and maintenance and lawn care. His areas of expertise include outdoor decoration, gardening and garden design.