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Stenner Pump Company · Chemical Delivery and Chlorination

Stenner Classic Series peristaltic metering pumps

Peristaltic feed that self-primes, runs dry safely and handles off-gassing bleach

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← Back to all productsRequest availabilityFacts verified against manufacturer literature 2026-09-16.

Overview

Stenner's Classic Series is a peristaltic metering pump: the chemical moves through a replaceable tube squeezed by rollers, so it never touches the pump mechanism and the pump can run dry or handle off-gassing bleach without losing prime. Output is set on an external dial from 5 to 100 percent, and tubes and heads swap between models without tools. It is a dependable, low-maintenance choice for hypochlorite and acid feed at small and mid-size pools.

Is this a fit for your facility?

Usually a fit when

  • Sodium hypochlorite feed
  • Muriatic acid feed
  • Controller-switched or pressure-switch-activated dosing

Ideal facilities and conditions: Sodium hypochlorite feed; Muriatic acid feed; Controller-switched or pressure-switch-activated dosing.

Problems it addresses

Key capabilities and benefits

Capabilities

  • External dial output control, 5-100% in 2.5% increments (FSPECCSHA)
  • Self-priming to 25 ft vertical lift; does not lose prime or vapor lock (FSPECCSHA)
  • Pumps off-gassing solutions and can run dry without damage (FSPECCSHA)
  • Tube replacement without tools; QuickPro pump head (manufacturer page)
  • 3-point roller assembly prevents backflow (manufacturer page)
  • Tubes and pump heads interchangeable between models (FSPECCSHA)

Available models and configurations

45M5Up to 50 GPD at 25 psi with #5 tube (per Aquafinity; verify in Stenner output table)
85M5Up to 85 GPD at 25 psi with #5 tube (per Aquafinity; verify)
45MHP10Up to 10 GPD at 100 psi with #2 tube (per Aquafinity; verify)

Technical specifications

Output controlExternal dial ring, 5-100% in 2.5% incrementsSource: FSPECCSHA
Maximum working pressure25 psi (1.7 bar) standard; 100 psi (6.9 bar) high-pressure modelsSource: FSPECCSHA
Maximum suction lift25 ft (7.6 m) vertical, based on waterSource: FSPECCSHA
Reproducibility±2%Source: FSPECCSHA
Maximum operating temperature125°F (52°C)Source: FSPECCSHA
HousingsPolycarbonateSource: FSPECCSHA
ListingTested and certified by IAPMO to ANSI/NSF 61 for sodium hypochlorite and water; NSF/ANSI 50 (listings vary by model)Source: FSPECCSHA

Specifications are summarized from manufacturer literature and depend on configuration. Confirm current values with FreyTech before design.

Installation requirements and retrofit considerations

Installation requirements, utilities, and clearances are confirmed with the manufacturer's installation manual and your engineer during evaluation.

Integration with other equipment

No equipment integrations are documented for this product. Coordination happens through the design team.

FreyTech's role: design, installation, commissioning, training, support

Project services

  • Evaluation of fit for your facility
  • Availability, lead time, and service coverage confirmed on request
  • Installation and support coordination where offered

Ongoing service and support

  • Parts and warranty coordination on request

Brochures, manuals, warranties and specifications

All resources for Stenner Classic Series peristaltic metering pumps · Request documents

Related products

See the Chemical Delivery and Chlorination category.

Related solutions: Stabilize water chemistry · Find replacement equipment · Modernize an aging equipment room · Improve chemical safety

Next step

Is Stenner Classic Series peristaltic metering pumps right for your facility?

Send us your pool volumes, current equipment, and what is not working. A specialist will review fit honestly and recommend next steps.

Serving commercial aquatic facilities across New York State.

Request a Facility AssessmentTalk to a Water-Quality Specialist

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