Stenner Pump 45Mfl5A1SUAA Chemical Feed Pumps Fixed Rate - 50GPD, 120V, 0.25 in, 30 ft

Precise Fixed-Rate Dosing for Consistent Pool and Spa Chemistry

The Stenner 45Mfl5A1SUAA fixed-rate chemical feed pump is designed for automated, repeatable dosing in pool and spa treatment systems. It delivers up to 50 gallons per day at 120V and uses standard 0.25 in dosing tubing, enabling straightforward integration into your existing circulation loop. With a 30 ft reach noted in its configuration, it offers flexible placement options while keeping the chemical feed consistent and reliable.

Construction, Compatibility and Integration

Built for chemical dosing reliability, this Stenner pump emphasizes durability in water-treatment environments. The unit focuses on a peristaltic design that keeps flow media contained within the tubing, reducing exposure of internal components to chemicals. It supports standard 0.25 inch dosing tubing and is suitable for inline installation within pool and spa treatment lines, helping to automate sanitizer delivery and specialty chemical feed without invasive plumbing changes. The fixed-rate operation provides a steady output regardless of upstream pressure changes, aiding in maintaining stable water chemistry across varying flow conditions.

Ideal For

• System compatibility: Pool and spa dosing lines using standard 0.25 in tubing
• Replacement or maintenance context: Replacement for manual or intermittent chemical dosing with a fixed-rate pump
• Performance outcome: Delivers a constant, repeatable dosing rate to support stable sanitization and chemical balance
• Installation or configuration context: Inline mounting within the pool or spa treatment loop for automated dosing

Key Features

• Fixed-rate dosing pump delivering up to 50 GPD
• Powered by 120V electrical supply
• Tubing compatibility: 0.25 in (1/4 in) dosing tubing
• Peristaltic pump design focused on chemical dosing reliability
• Model: 45Mfl5A1SUAA for precise identification

Stenner is a recognized leader in peristaltic dosing pumps, with a long-standing engineering focus on reliable, low-maintenance chemical feed solutions for pool, spa, and broader water treatment applications. The brand emphasizes precision, simplicity, and durability to support consistent water chemistry over time.