// Initialize Pentair / Channel Advisor Sales Reporting sTrack.initialise();
Home Stenner Classic Series 45M4 Pump | Single Head Adjustable Output | 35GPD 120V 60Hz USA .25" UV Black 25PSI | 45MJL4A2STAA

Stenner Classic Series 45M4 Pump | Single Head Adjustable Output | 35GPD 120V 60Hz USA .25" UV Black 25PSI | 45MJL4A2STAA

Stenner Classic Series 45M4 Pump | Single Head Adjustable Output | 35GPD 120V 60Hz USA .25" UV Black 25PSI | 45MJL4A2STAA
How It Works

Stenner’s adjustable metering pump is built with three detachable components: the motor, feed rate control, and pump head. Outputs are dependent upon three factors: the rpm of the motor gears, the percentage setting on the feed rate control, and the size of the peristaltic pump tube. All Stenner metering pumps have a 3-point roller design in the pump head, which acts as a check valve to prevent back flow, siphoning, overdosing and loss of prime.

The motor shaft rotates at a fixed rpm which drives the adjustable feed rate control to intermittently engage the roller assembly within the pump head. The chemical solution in the pump tube is captured between the rollers as they rotate and compress the tube. As the rollers advance, the squeezed tube section regains its original form and generates a vacuum, creating the self-priming feature that delivers a constant flow unaffected by the outlet pressure.
0.2 to 22.0 gpd up to 100 psi
0.2 to 50.0 gpd up to 25 psi
  • 26 rpm
  • Adjustable output 5%-100%, 2.5% increments
  • 3-point roller design assists in anti-siphon protection
  • Pump head requires no valves, allows for easy maintenance
  • Self-priming against maximum working pressure, foot valve not required
  • Pump does not lose prime or vapor lock
  • Pumps off-gassing solutions and can run dry
  • Output volume is not affected by back pressure
  • Easy to change pump tube; lubrication is not required
  • Pump tubes and pump heads interchange between models
Accessory Kit Shipped With Each Pump
  • 3 connecting nuts 1/4" or 3/8"
  • 3 ferrules 1/4" or 6 mm EUROPE OR 2 ferrules 3/8"
  • 1 injection check valve 100 psi (6.9 bar) OR 1 injection fitting 25 psi (1.7 bar)
  • 1 weighted suction line strainer 1/4", 3/8" or 6 mm EUROPE
  • 1 20' roll suction/discharge tubing 1/4" or 3/8",white or UV black
  • OR 6 mm white EUROPE
  • 1 additional pump tube
  • 2 additional latches
  • 1 mounting bracket
  • 1 manual
Maximum Operating Temperature 125° F (52° C)
Maximum Suction Lift 25 ft (7.6 m) vertical lift, based on water
Motor Type 1/30 HP, shaded pole, class B
Duty Cycle Continuous
Motor Voltage (Amp Draw)
120V 60Hz 1PH (1.7)
220V 60Hz 1PH (0.9)
Power Cord Type SJTOW
Power Cord Plug End
120V 60Hz NEMA 5/15
220V 60Hz NEMA 6/15
230V 50Hz CEE 7/VII
250V 50Hz CEE 7/VII
All Housings Polycarbonate
Pump Tube & Check Valve Duckbill Santoprene®*, optional Tygothane®** #1, #2 & #5 tubes, FDA approved
CV Duckbill with Tygothane®** Tube Pellathane®†
Pump Head Rollers HDPE
Roller Bushings Oil impregnated sintered bronze
Suction/Discharge Tubing, Ferrules 1/4" & 6 mm
Polyethylene, FDA approved
Tube Fittings, Check Valve Fittings Gray fittings: Type 1 Rigid PVC, NSF listed Black fittings: PP, NSF listed
Connecting Nuts PP or Type 1 Rigid PVC
3/8" Adapter Type 1 Rigid PVC, NSF listed
Suction Line Strainer PP or Type 1 Rigid PVC body with Type 1 Rigid PVC cap, NSF listed; ceramic weight
All Fasteners Stainless steel
Pump Head Latches Polypropylene
  • Models tested by Water Quality Association to conform to ANSI/NSF STD 61 (Santoprene® only)
  • Adjustable models tested by ETL to conform to ANSI/NSF STD 50 (Santoprene® only)
  • Listings vary by model


Stenner Classic Series 45M4 Pump | Single Head Adjustable Output | 35GPD 120V 60Hz USA .25" UV Black 25PSI | 45MJL4A2STAA

Product description
Features and details
Hay muchas maneras diferentes de contactarnos, y nos gustaría hablar con usted sobre las preguntas de su compra, ayudarle a diagnosticar los problemas de su equipo y escuchar acerca de cómo podemos mejorar y todo lo que está en su mente.
Click Here
Phone Support (Central Time)
6am - 6pm Monday - Saturday
Be the first to know the latest news, deals & special events!


By signing up you indicate that you agree to the terms of our privacy policy.

Pool Supply Unlimited is an e-commerce company that loves water. We love to pump it, filter it, heat it, chlorinate it, light it up and stare at it while we're barbequing a fat, juicy steak. There are real pool professionals working here. Our guys have seen thousands of pools in their careers, no exaggeration. We are based in San Antonio, TX and can land most products to your door (within the 48 contiguous states) in less than a week.
Visa Mastercard Discover American Express