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41 Series Automatic Demand Diaphragm Pump


41 Series automatic demand diaphragm pump. 12 and 24 volt models. 4.5 GPM / 40PSI. 5.0 Amps.

Larger volume pump 51 Series  Pump

Pressurize any cabin, cottage, home, RV, boat, farm buildings, workshops and garages. Great for remote camps and rough camping.


SKU: SFDP1-045-040-41 Category: Tags: , , ,



Automatic demand diaphragm pump 41 Series. 12 and 24 volt models. 4.5 GPM / 40 PSI.

Larger volume pump available.  51 Series Pump

Corrosion resistant valves.

Quiet running.

Smooth operation.


Runs dry without damage.

Low power draw.

Easy connecting system.

Santoprene diaphragm.

The 41-Series pump provides high volume water flow with reduced pump cycling, thanks to the quad chamber diaphragm and internal bypass. These models are designed to run on water systems with no accumulator tank necessary, and up to five outlets. It is also suited for use with a holding tank water system, as may be found in a boat, RV or remote cabin. It provides up to 4.5 gallons per minute, suitable in a system of up to five fixtures. The 41-Series pumps are self-priming, and can run dry without damage, performance reliable and low current. This automatic demand water system pump has a built-in pressure switch, which automatically starts and stops the pump when faucet is opened and closed. They’re easy to install service and winterize with quick snap-in port fittings.

This pump is a diaphragm pump and as such it can pump air. This means if you have to blow out the lines to winterize your system you just need to disconnect the water supply and let it draw air into the lines. Let it run for a few minutes to ensure all lines are cleared of water. To pressurize the system, hook the pump up to your water supply system. It will self prime itself up to 6 feet. Ensure there are no air leaks into the system as this drastically affects it’s performance.

Wireless remote switches are available that can control the pump from as far away as 50 meters. This allows you to have your pump down at a water source and control it from your cabin or camp. These are great as a water transfer pump as well.

Full two year warranty.



Additional information

Weight 6 lbs
Dimensions 14 × 6 × 5 in

12V, 24V


Features & Benefits
Positive displacement pump
Can run dry
Quiet operation
Industry standard mount pattern
Demand pump
Easy connect fittings
Typical Applications
Agricultural Spraying
General Industrial
4 chamber positive
displacement diaphragm
pump, self priming, capable
of being run dry
Liquid Temperature
140°F (60°C) Max.
Priming Capabilities
6 feet (1.8 m) suction lift
Max Pressure
40 PSI (2.8 bar)
Inlet/Outlet Ports
Quick Attach
5.0 lbs (2.30 kg)
Duty Cycle
16 AWG, 4.5″ long with
2-Pin connector/Leads


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