10 Best Swimming Pool Chlorine Dispensers 2025 in the United States

The Hayward CL200 In-line Automatic Chemical Feeder is designed for convenience and efficiency in maintaining your swimming pool's chlorine levels. It uses both large and small, slow-dissolving tablets, which makes it versatile for different pool sizes and conditions. The dial control valve is a standout feature, allowing you to easily adjust the feed rate to suit your pool's specific needs. This level of adjustability ensures you can maintain optimal chlorine levels without much hassle.

The Easy-Lok threaded cover makes it simple and safe to add new tablets, reducing the frequency of handling chemicals directly. Additionally, the unique finger-release catch provides an extra layer of security, preventing accidental spills or leaks. Constructed from durable ABS material and fitted with a high-quality Viton seal, the feeder is built to last and resist wear and tear, offering extended life with minimal maintenance. This durability is particularly beneficial in environments where the feeder is exposed to constant water and chemical contact.

On the downside, the feeder's 0.25-pound weight might be a bit light, suggesting it may require careful installation to ensure stability. Also, while the unit prevents corrosion, which is a great benefit, it is important to regularly check seals and connections to avoid any potential leaks over time. This product is best suited for pool owners who want a reliable and adjustable chemical feeder that simplifies the task of maintaining pool sanitation by automating chlorine dispensing.

The Pentair R171096 Rainbow 320 Automatic in-Line Chlorine/Bromine Feeder is designed for both pools and spas. Its main advantage is the lack of special venting requirements, making installation straightforward. The feeder is permanently installed into the return line of your pool or spa, which can be a convenient feature for those looking for a long-term solution.

It can hold a substantial amount of chlorine or bromine tablets, with a capacity of up to 11 large or 98 small tablets, providing consistent and continuous water sanitation. This ensures your pool stays clean and healthy with minimal effort on your part. The feeder is made from durable PVC, which is a common and reliable material for pool equipment, ensuring longevity and resistance to pool chemicals.

However, the unions are not included, which might require an additional purchase and could complicate the installation process for some users. Additionally, its size and weight (14 x 26 x 46 inches, 4.5 pounds) should be considered to ensure it fits well within your pool setup. This product is ideal for pool owners looking for a reliable, high-capacity chlorine dispenser that provides ongoing water sanitation with minimal maintenance.