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The 21-Series Pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration and dispensing. The 21-series of diaphragm pumps are self-priming and can be run dry without harm. It provides up to 1.2 gallons per minute. Miniature multi outlet water pressure pump serves 1 or 2 3/8inch (10 mm) outlets at any one time. This compact automatic demand water system pump has a built-in pressure switch, which automatically starts and stops the pump when faucet is opened and closed.

Features:
• Capable of supplying1-2 fixture.
• 18AWG,13"long Leads.
• Ignition protected.
• Meets or exceeds RoHS, SGS, and ISO standards.
• Intermittent duty.
• Industry standard mounting pattern.

DC Voltage:12.0 V

Seaflo Series 21 12V Water Pump

Cat. No: MC7300,
MPN: SFDP1-010-040-21
4.2(5)
$54.95
Bulk Pricing
Buy More, Save More! Bulk pricing applies automatically in cart.
Qty 1-2
$54.95 / unit
Qty 3-5
$48.95 / unit
Best Value
Qty 6+
$43.95 / unit
30-Day Returns
Australian Stock
Warranty Included
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Customer Reviews

Bazaarvoice Authentic Reviews

4.2

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Didn't even last a day

dexter89February 2025

using it to intermittently drain a small water trap. Turns on via relay triggered by float switch. Didn't even last 4 hours of 20sec run times, 10min or more off.

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Best value low powered pump

TakeshiJanuary 2024

If you are looking for a powered pump to fill up your tank(s) or for a water system that isn't being used constantly this unit is ideal. The flow rate is 4.3LPM which perfect for most application, for more high powered water pumps you would need to implement something to control the flow rate otherwise you end up running through your water supplies. Seaflo offer a 3 year warranty across their range of pumps which definitely rings peace of mind.

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Super quiet, yet powerful pump

Dylan WJanuary 2024

I recently purchased this pump from my local RTM store, the staff were kind enough to recommend this as a replacement to my old pump. I am extremely impressed how quietly the pump runs, without any affect to it's pressure and flow. I highly recommend purchasing Seaflo's range of pumps, not to mention the lengthy warranty they also have. Fantastic value for money.

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Great little pump

MAD4X4MANJanuary 2024

These pumps are excellent, reliable and use very little power. I have been running one of these for a while now in my camper and i especially love the on demand feature so i dont have to worry about switches etc.

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Small but sufficient

MichalDecember 2025

Have it in a van for sink with pull out hose for the occasional shower and works great.

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