Best in Line Chlorinator for Above Ground Pool
Choosing the right inline chlorine feeder keeps above-ground pools sparkling with minimal effort. This guide highlights five reliable in-line chlorinators, covering compatibility, installation style, and flow control. Each option is suited for varying pool sizes and plumbing layouts, helping you maintain consistent sanitation. The selections emphasize durable construction, ease of use, and compatibility with standard 1.5–2 inch lines. Read on to compare key features, installation notes, and safety considerations so you can pick the best inline feeder for your pool system.
| Product | Brand | Suitable For | Installation | Key Benefit |
|---|---|---|---|---|
| Pentair Rainbow 320 Automatic In-Line Chlorine/Bromine Feeder | Pentair | Above ground or in-ground pools | In-line return line | High capacity with secure inline dosing |
| XtremepowerUS Automatic Chlorinator Feeder (Off-Line) | XtremepowerUS | Above ground and in-ground pools | Off-line piping | Flexible installation with reduced flow restrictions |
| Waterway CAG004-W Clearwater In-Line Chlorinator | Waterway Plastics | Above ground pools | Inline on plumbing | Made in the USA with standard parts |
| Blue Wave NA3424 In-Line Automatic Chlorine Feeder | Blue Wave | Above ground pools | Inline with plumbing | High capacity and adjustable flow |
| Doheny’s Automatic Chlorine Feeder (In-Line) | Doheny’s | Above ground or in-ground | In-line or off-line options | Easy installation and versatile options |
Pentair Rainbow 320 In-Line Chlorine/Bromine Feeder
The Pentair Rainbow 320 is designed for permanent installation in the return line of pools and spas. It comes standard with a 2″ slip PVC fitting and adapters for 1-1/2″ lines, allowing straightforward inline integration. This feeder supports automatic dosing for chlorine or bromine, helping maintain sanitizer levels with reduced manual monitoring. Its robust inline design supports consistent chemical distribution, particularly in setups that require reliable, continuous dosing. Handle installation and maintenance with standard pool plumbing tools for best results.
CL200 Inline Automatic Chlorinator
The CL200 inline chlorinator is compatible with both above-ground and in-ground pools, offering a direct connection to the pool return line. It includes fittings for 2-inch pipe and uses a dial-controlled valve to adjust feed rate, allowing chlorine or bromine tablets to dissolve at a controlled pace. The unit is constructed from heavy-duty resin and supports pools up to 40,000 gallons, making it suitable for mid-sized setups. A finger-release latch adds extra safety during operation and adjustments.
XtremepowerUS Automatic Chlorinator Feeder (Off-Line)
This off-line chlorine feeder is ideal when inline installation isn’t feasible. It connects to your pool piping but sits separate from the main line, reducing potential flow restrictions. With a 9-pound capacity, it supports slow-dissolving 3″ trichlor or bromine tablets. The dial control valve lets you tailor the feed rate, while the rugged resin construction provides durability for long-term use. Easy access via a threaded cover simplifies periodic tablet replenishment and maintenance.
Waterway Clearwater CAG004-W Inline Chlorinator
The Waterway CAG004-W is a compact inline chlorinator designed for above-ground pools, proudly made in the USA. Its straightforward inline installation enables quick setup without special tools. The unit provides dependable chlorine delivery in a compact form factor, making it a practical choice for smaller or simplified pool plumbing configurations where space and ease of use are priorities.
Custom Molded Products Inline CHLORINATOR PWRCLN ULTR
The Inline CHLORINATOR PWRCLN ULTR is designed for durable inline use with standard piping. This model emphasizes a streamlined inline design suitable for integration into existing pool plumbing, supporting steady sanitation through consistent dosing. It’s a practical option for homeowners seeking a straightforward, reliable feeder with uncomplicated maintenance and parts compatibility.
Upgraded 320 Pool Chlorinator (Rainbow 320 Compatible)
The Upgraded 320 is designed to mimic the Rainbow 320’s core functionality with enhanced features. It supports chlorine and bromine dosing via a closed system, permitting tablets to be loaded to meet pool size and sanitation demands. The design emphasizes improved sealing, venting, and a convenient feed control valve, providing reliable inline performance for a wide range of pool configurations.
Blue Wave NA3424 In-Line Chlorine Feeder
The Blue Wave NA3424 offers a high-capacity 9-lb tank suitable for 1″ or 3″ chlorine tablets. It is designed for easy inline installation on standard 1.5-inch plumbing and works with small inground pools as well. The adjustable flow control dial allows precise chlorine delivery, aligning feed rate with pool size and chemical demand to maintain balanced sanitation over longer intervals.
Doheny’s Automatic Chlorine Feeder (Inline)
Doheny’s Inline Automatic Chlorine Feeder provides straightforward inline installation for above-ground or in-ground pools, with options for inline or offline configurations. The design emphasizes accessibility and ease of setup, making it a practical choice for pool owners seeking a simple, reliable chlorination feeder that integrates with existing plumbing with minimal modification.
Buying Guide
- Pool size and volume: Match the feeder capacity to your pool’s gallons. Larger systems benefit from higher-capacity feeders to reduce refill frequency.
- Inline vs. off-line installation: Inline feeders connect directly to the return line, offering compact installations. Off-line feeders sit separately and can reduce flow restrictions in tight plumbing setups.
- Tube and pipe compatibility: Ensure the unit fits standard sizes (1.5″ or 2″ pipes). Check adapters and fittings included or required for your plumbing.
- Tablets vs. granules: Most inline feeders use 3″ or 1″ chlorine tablets. Some units support bromine tablets as well. Consider the chemical you commonly use and the dissolution rate.
- Safety features: Look for secure latches, venting provisions, and safety releases that prevent accidental overdosing or leaks during maintenance.
- Maintenance and accessibility: Choose feeders with user-friendly access for tablet replenishment and cleaning. Threaded covers and clear indicator dials simplify operation.
- Durability and materials: Resin bodies and corrosion-resistant components are preferable for outdoor pool environments and chemical exposure.
- Compatibility with existing equipment: If you have a specific brand ecosystem (like Pentair Rainbow), consider one of the brand’s compatible inline feeders to maximize integration and support.