Seaflo 21 Series DC Diaphragm Pump

$65.00 / Each incl. GST

Seaflo 21 Series DC Diaphragm Pump – 

These handy pumps are ideal for transferring chilled water via cooling equipment. Please note max temp 60c. Pump will require to be wired. 

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 3/8” (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.


2 Chamber positive displacement diaphragm pump, self priming, capable of being run dry
Control Type – Pressure switch
Max Recommended Temperature 60° C (140° F)
Priming Capabilities 4 feet (1.2 m) suction lift

Re-start Pressure

Shut-off Pressure35 PSI: 25 PSI ±5 PSI (±0.3 bar)
Shut-off Pressure40 PSI: 30 PSI ±5 PSI (±0.3 bar)
Shut-offPressure70 PSI: 56 PSI ±5 PSI (±0.3 bar)

Inlet/Outlet Ports 3/8″ (10mm) hose barb

Leads 18 AWG, 14″ (35cm) long with 2-Pin connector/Leads
Duty Cycle Intermittent
Max.Amp Draw 4.0 A
Fuse 6.0 A



1 unit in stock

Product Price
SKU: HD129 Category:

Additional information

Weight 0.7 kg


Save & Share Cart
Your Shopping Cart will be saved and you'll be given a link. You, or anyone with the link, can use it to retrieve your Cart at any time.
Back Save & Share Cart
Your Shopping Cart will be saved with Product pictures and information, and Cart Totals. Then send it to yourself, or a friend, with a link to retrieve it at any time.
Your cart email sent successfully :)