Best Automatic Pool Chlorinator Options for Clean, Safe Water
Choosing an automatic pool chlorinator helps maintain consistent sanitation with less effort. This guide highlights top models that work with in-line or offline systems, supports various pool sizes, and offers simple adjustment controls. Read on to compare features, compatibility, and installation considerations to pick the right chlorinator for your pool or spa.
| Product | Brand | Key Benefit |
|---|---|---|
| Hayward CL220EF Off-line Automatic Chemical Feeder | Hayward | Dial control for easy feed rate adjustments |
| Hayward CL200EF in-line Automatic Chemical Feeder | Hayward | Large or small slow-dissolving tablets; safe access via Easy-Lok |
| Hayward CL2002S In-line Automatic Chemical Feeder | Hayward | Secure finger-release latch; compatible with trichlor or bromine tablets |
| Pentair R171096 Rainbow 320 Automatic Feeder | Pentair | Balanced inline design for diverse pool sizes |
| HYDROTOOLS By SWIMLINE 8750 In-Line Chlorine Feeder | Swimline | Universal compatibility with adjustable output |
Hayward CL220EF Off-line Automatic Feeder
The Hayward CL220EF is designed for offline chemical feeding, supporting large or small, slow-dissolving tablets. Its updated design for the CL220 includes a dial control valve to adjust the feed rate easily. A Safe-access Easy-Lok threaded cover provides secure access for loading tablets. This feeder is suitable for providing consistent chemical distribution in residential pools while maintaining a straightforward installation process.
Hayward CL200EF In-line Automatic Feeder
The Hayward CL200EF in-line feeder accepts both large and small slow-dissolving tablets, offering a model update for CL200. It features a dial control valve for easy feed-rate adjustment and an Easy-Lok threaded cover for safe, convenient access to add tablets. This unit integrates with inline chlorination to maintain water quality efficiently across various pool setups.
320 Chlorinator R171096 Compatible Feeder
The 320 feeder from CatArt is designed to work with Rainbow 320 inline chlorine/bromine systems. It holds up to 11 large tablets or 98 small tablets and supports efficient circulation for pools and spas. The design emphasizes improved gasket sealing and a robust control valve to reduce leakage, enabling reliable operation across a range of pool sizes from mid to large. Suitable for both online and offline installations with extended service life.
Pentair R171096 Rainbow 320 In-Line Feeder
This Pentair model is the Rainbow 320 automatic in-line feeder for pool and spa applications. It supports permanent installation in the return line and ships standard with 2″ slip PVC fittings plus adapters for 1-1/2″ lines. The design emphasizes a secure, long-term installation with reliable chemical dosing that aligns with common pool plumbing configurations, making it a durable option for both new builds and retrofits.
HYDROTOOLS By SWIMLINE 8750 In-Line Feeder
The HydroTools by Swimline 8750 offers a premium inline chlorine feeder with adjustable output and a 9.0 lb capacity. It provides universal compatibility and is suited for both above-ground and in-ground pools, as well as bromine usage. Features include SNAP-LOCK technology for a tight seal and a finger-release lid for safe tablet loading. The unit integrates smoothly with existing filtration systems, reducing manual chemical handling while maintaining water clarity.
Buying Guide: Key Considerations For Selecting An Automatic Pool Chlorinator
- Compatibility: Confirm whether the feeder is inline or offline and verify it fits your pool’s plumbing and chlorination system (trichlor, bromine, or calcium hypochlorite tablets).
- Tank capacity and tablet size: Larger pools benefit from higher capacity feeders; consider whether the unit can hold the number and size of tablets you plan to use.
- Adjustment controls: Look for easy-to-use dial or valve controls to adjust feed rate accurately according to pool size, turnover rate, and sanitizer demand.
- Seal and maintenance: Choose models with robust seals, durable construction, and accessible covers for safe refilling and reduced leakage risk.
- Installation flexibility: Inline feeders require compatible plumbing in the return line; offline feeders can be easier to install in some setups but may need routing adjustments.
- Safety and accessibility: Ensure covers and latches offer safe operation, especially in households with children or pets.
- Durability and materials: Look for corrosion-resistant materials (e.g., ABS, corrosion-resistant plastics) to withstand pool chemistry and outdoor exposure.
- Maintenance requirements: Some feeders offer straightforward maintenance and part replacement, which can extend service life and reduce downtime.
- System integration: If you have an automation system, verify compatibility to maintain cohesive pool management and monitoring.
- Warranty and support: Consider brands with solid customer support and warranty coverage for hardware issues or part replacements.