Stenner 45Mfl5A2SUAA Chemical Feeder Pump - 50GPD, 120V, 0.25 in

Precise 50 GPD Chemical Dosing for Pool and Spa Systems

The Stenner 45Mfl5A2SUAA Chemical Feeder Pump is a compact, 50 GPD metering pump designed to inject sanitizers, pH adjusters, and other pool and spa chemicals directly into inline treatment lines. It runs on 120V AC power and uses standard 1/4-inch tubing, making it a straightforward addition to most pool and spa chemical management setups.

Construction, Compatibility and Integration

Built for reliability in continuous dosing, this Stenner pump features a chemically resistant pump head and seals designed to stand up to common pool and spa chemistries, including chlorine and acids. Its compact enclosure fits inline with feeder lines and is compatible with standard 1/4-inch tubing and Stenner dosing assemblies. The unit is designed for easy integration into existing pool or spa equipment racks or plumbing runs, delivering dependable performance in routine maintenance routines.

Ideal For

• System compatibility: Integrates with standard Stenner feeder configurations and inline dosing lines using 1/4" tubing
• Replacement or maintenance: Replaceable diaphragms and seals enable long-term serviceability
• Performance outcome: Delivers precise, repeatable dosing up to 50 GPD for reliable sanitizer and pH control
• Installation or configuration: Inline installation with 120V power in pool or spa treatment loops

Key Features

• Dosing capacity: Up to 50 GPD (gallons per day)
• Voltage: 120V AC operation
• Tubing connections: 1/4 inch (0.25 in) inlet/outlet tubing
• Pump type: Diaphragm metering pump with replaceable diaphragm and seals
• Model identification: 45Mfl5A2SUAA

Stenner Pumps has established itself as a leader in chemical dosing technology, focusing on precise, reliable dosing solutions for pool, spa, and broader water-treatment applications. The brand emphasizes robust engineering, field-proven performance, and long-term serviceability to support consistent system chemistry management.