By Stenner Pump Company



Model # 45M5

Alternate Part #'s SPC45MJL5A1STAA

Product Description

The Classic series is available as a single or double head pump. Each pump is available as adjustable or fixed output, perfect for accurate and repeatable injection of chemicals or liquid additives. The adjustable models' outputs range from 5 to 100% by utilizing the external dial ring. The fixed output models are ideal for use with controllers or with Stenner's proportional feed systems comprised of a pump, PCM (Pump Control Module) and a pulse generating dry contact water meter.


  • Output- Min: 2.5 gpd to Max: 50 gpd
  • Output adjustment from 5 - 100% in 2.5% increments
  • Snap-fit components allow service without tools
  • Self-priming up to 25 feet
  • Does not lose prime or vapor lock
  • Pump tubes accept a variety of chemicals
  • Will pump against pressures of up to 100 psi


  • Output: 5 gpd
  • Discharge Pressure: 0-25 psi
  • Voltage: 120V  60 Hz.
  • Amp Draw: 1.7 - 120V
  • Dimensions: 10.6 x 5.3 x 6.0 in.

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.

Stenner Commercial Chemical Feed Pump 220V (50 GPD)


Product Specifications

Max Gallons Per Day:

?     Asked on 1/7/2013by Guest

Is the 45M5 pump 120v or 220v?

A  Answered on 1/7/2013 by InyoPools Product Specialist Patrick P.

The 45M5 Stenner Commercial Chemical Feed Pump (50 GPD) can be ordered as either 120v or 220v.  You would need to specify voltage at the time you place your order.

?     Asked on 4/28/2016by Mark

Can you use a 25psi pump and put a 100 psi stenner tube in it and pump against 60 psi?

A  Answered on 4/29/2016 by InyoPools Product Specialist Lennox H.

Hi Mark, You will need to get a pump that can handle a psi of 60 or greater.


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