Stenner 45MJL5A3TQAA Classic 45 Adjustable Pump – 50 GPD, 25 PSI, 120V

45MJL5A3TQAA — Stenner Classic 45 Series Single Head Adjustable Metering Pump, 50 GPD, 25 PSI, 120V.

Stenner's Classic Series is the pump line that built the company's reputation: a simple, electromechanical peristaltic design that has been in continuous production for decades because it works and it's easy to service. The patented roller-and-tube pump head keeps the solution completely isolated from the motor and gearing, so there are no seals, valves, or check balls to wear out or clog. The pump is self-priming against full working pressure, won't lose its prime or vapor-lock on off-gassing chemicals like sodium hypochlorite, and can run dry without damage. The 45 Series is Stenner's compact single-head model, built for residential and light-commercial dosing where output demands stay under 45 gallons per day. An external feed-rate dial lets you fine-tune the dose from roughly 5% to 100% of the pump's rated capacity in the field, without tools. It's the standard choice for well water chlorination and disinfection, pH correction, iron and manganese oxidation ahead of a filter, corrosion and scale control, and commercial pool and spa sanitation, and is also widely used in cooling towers, irrigation, animal health, and industrial process water.

Specifications:

• Maximum Output: 50 GPD
• Maximum Working Pressure: 25 PSI
• Motor Voltage: 120V, 60Hz
• Suction/Discharge Tubing: 3/8" Versilon
• 3-point roller design assists in anti-siphon protection
• Pump head requires no valves, for easy maintenance
• Self-priming against maximum working pressure; no foot valve required
• Won't lose prime or vapor-lock on off-gassing solutions, and can run dry
• Output volume is not affected by back pressure
• Tool-free pump tube changes; no lubrication required
• Pump tubes and pump heads interchange between Classic models