Swimline Hydrotools 87501 Economy In-Line Automatic Chlorine Feeder – 4.2 Lb Capacity, Universal Compatibility

Effortless pool chemistry with Hydrotools by Swimline

Hydrotools by Swimline stands as a trusted name for durable pool equipment designed to simplify daily maintenance. The 87501 economy in-line automatic chlorine feeder runs in the background, delivering consistent dosing so you can enjoy crystal-clear water with less guesswork. Built to integrate with your existing pump and filter, this feeder helps you upgrade your pool setup without a major overhaul.

Crafted from commercial-grade thermoplastic, the unit resists UV exposure and corrosion, standing up to sun, splash, and chemicals season after season. Its robust construction and thoughtful design make it a practical investment for both recreational and practical pool care, balancing performance with long-term value.

Key features you’ll notice

• Automatic dissolution and distribution of chlorine or bromine to help maintain clear, inviting water
• Double-reinforced lid for a secure seal and easy access to reload tablets; 360° adjustable output dial for precise dosing
• Universal inline design that serves as a simple replacement or addition to existing pool or spa equipment
• UV-stable, corrosion-resistant construction built to last in challenging pool environments
• 2-inch inlet and outlet connections; 4.2 lb capacity for extended dosing intervals
• Compatible with chlorine and bromine (DO NOT MIX); pairs well with Hydrotools sand or cartridge filter systems

Specs, compatibility, and what it means for your pool

• 4.2-pound capacity supports longer intervals between refills
• Works with large or small slow-dissolving tablets
• Designed for both above-ground and in-ground pools
• Drop-in replacement or additive for existing filtration setups without costly tools

In real-world use, this feeder can reduce the effort involved in maintaining balanced water. It works in the background, letting you focus on enjoying the pool rather than chasing chemical levels. While results vary with pool size and usage, many users experience steadier sanitizer levels and more consistent water clarity.

For households seeking convenience, the Hydrotools 87501 provides a practical way to automate routine dosing, potentially cutting manual adjustments and helping you maximize time spent swimming and entertaining with family and friends.