Stenner Pump 85MJL5A1STAA Chemical Feed Pump, Single Head Feeder, Peristaltic Pump - 85MS, 85GPD, 25PSI, White

Precise chemical dosing for reliable pool and spa water treatment

The Stenner Pump 85MJL5A1STAA is a single-head, peristaltic chemical feed pump designed to inject liquids into pool and spa circulation systems. It delivers up to 85 gallons per day (GPD) at up to 25 psi, making it suitable for steady sanitizers, pH adjusters, and algaecides within a standard dosing line. This unit is built for MJL-series installations and pairs with replaceable tubing for easy maintenance and long service life.

Construction, Compatibility and Integration

The 85MJL5A1STAA uses a robust peristaltic pumping action with a single dosing head, enabling precise, contamination-free dosing with minimal moving parts. The pump is designed for inline installation in pool and spa treatment loops and works with Stenner MJL tubing and fittings to maintain consistent flow. The white housing provides a compact footprint suitable for equipment enclosures and control panels in typical pool and spa rooms. Its 85 GPD capacity at 25 psi aligns with common dosing requirements for continuous chemical feed, reducing manual adjustments and refilling between service intervals.

Ideal For

• System compatibility: Works with Stenner MJL-series dosing systems and standard pool/spa chemical lines
• Replacement or maintenance: Field-replaceable tubing and a single-head design for straightforward service
• Performance outcome: Delivers up to 85 GPD at 25 psi for consistent, repeatable dosing
• Installation or configuration: Inline installation in the chemical feed loop with a compact footprint

Key Features

• Flow capacity: Up to 85 GPD
• Maximum pressure: 25 psi
• Single-head peristaltic pump
• White enclosure for easy mounting in equipment spaces
• Compatible with MJL-series tubing and fittings

Stenner Pump Company is a recognized leader in chemical dosing pumps, known for durable, maintenance-friendly peristaltic designs. The MJL family emphasizes reliable, low-maintenance dosing suitable for pool and spa water treatment, with straightforward tubing replacement and long service life.