10 Best Swimming Pool Chlorine Dispensers 2025 in the United States

The U.S. Pool Supply Pool Chlorine Floater is a solid choice for anyone looking to keep their inground pool, spa, or hot tub clean with a reliable chlorine dispenser. It’s a heavy-duty floating unit that holds up to 3 pounds of 3-inch or 1-inch chlorine or bromine tablets, which means less frequent refilling. The dispenser features a secure locking cap to prevent tablets from falling out, and an adjustable control ring lets you control how quickly the chemicals dissolve, helping maintain balanced sanitation.

Its large 7-inch diameter design allows it to float steadily on the water surface. Users find it easy to use and appreciate that it’s durable enough for regular pool maintenance. On the downside, the product is made in China, which might concern some buyers focused on locally made items. Also, it only fits standard tablet sizes, so it’s not suitable for liquid or powdered chlorine.

This floater provides dependable performance with simple adjustability and good capacity, making it a user-friendly option for maintaining clean, sanitized pool water. While it’s a great fit for typical residential pools or spas, those with very large pools may need multiple floaters or a more heavy-duty dispenser system.

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.

The HYDROTOOLS BY SWIMLINE 8715 Mini Chemical Dispenser is designed mainly for spas and small personal pools, making it a good choice if you're looking for something compact and easy to handle. It holds 1-inch chlorine or bromine tablets, which suits small water volumes but means frequent refilling if you have a larger pool. One of its handy features is the adjustable control ring, allowing you to customize how much chemical it releases, helping maintain the right balance without guesswork.

The dispenser’s double-reinforced construction is durable and resistant to corrosion, so it stands up well to pool chemicals over time. It floats on the water, making it simple to use without complicated setup or maintenance. It’s also versatile, compatible with most chlorine and bromine tablets, so you won’t be limited in your chemical choice. However, its small size limits its capacity, so it’s not ideal if you have a big pool that needs more chemical treatment.

This dispenser is cost-effective in helping protect your pool equipment by maintaining proper chemical levels. It comes with a one-year guarantee, making it a reliable option for spa and small pool owners who want an easy-to-use, adjustable, and durable chlorine dispenser.