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Diaphragm Pump

Diaphragm Pump

79 reviews
$ 49.99

This little diaphragm pump is an excellent choice for automatic top-off duty. Unlike other diaphragm pumps available, this little powerhouse can push water to 30psi. Please be aware this is not a silent pump, it does vibrate and makes a similar amount of noise as a typical aquarium air pump.  It can also safely run dry, unlike conventional powerheads. It runs on 24v DC power. Flow rate is approximately 400mL/min, but note that it is not rated for continuous duty nor salt water applications. This means for intermittent use (as in ATO usage) it is great, but we do not recommend it for use as a calcium reactor feed pump, for example.  It can be used in conjunction with a kalk stirrer, but only to push fresh water into the stirrer.  We do not recommend pulling kalkwasser through the pump, as the high pH may shorten the life of the rubber diaphragms.

Diaphragm pump kit includes:

  • Pump in wall-mountable box
  • 24v DC Power Supply 
  • Tubing, 10ft
  • Check valve to prevent back siphoning
  • Micro ball valve to adjust flow rate (max 400mL/min)
  • Siphon break tee (see instruction manual for details when this is needed)

Technical Specs:

Max Run time: 20 minutes continuous 
Max flow rate:  400mL/min @ 0ft head pressure
Min flow rate: Fast drip
Max head pressure: 30psi 
Run dry: Yes
Self priming: Yes
Power: 24v DC, 4w 
Warranty: 1 year

Click here for instruction manual

Customer Reviews
4.9 Based on 79 Reviews
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Matthew b.
United States United States

Great little pump

Great pump for ato fill, previous model worked great for 3 years and i wanted to have a spare because only things you can't replace break

Avast Marine Works Diaphragm Pump Review
Bill G.
United States United States

Bought another one just in case

I bought my first one 4 or 5 years ago, but a replacement thinking it would go bad after three years. Eventually used the replacement for something else and now bought a third 5 years in, waiting for the first one to die... But it hasn't. Sometimes you get more than you pay for an item.

Todd S.
United States United States

Nice substitution for the famous Aqua Lifter

Great pump for my ATO build , its kind of noisy compared to the Tom Aqualifter but it does the job its designed gor

A Avast Marine Works Customer
Eric E.
United States United States

3 pumps on 3 tanks

I have brought 3 of these pumps for an ato on 3 tanks. They are extremely strong and very reliable. I would highly recommend them. I have two that have the apex power cord makes it really easy to power and doesn't use an ac port on the energy bar.

Senthil K.
United States United States

Pump for easy 100 feet distance

It is the perfect pump for my use case. I had 100 feet to move water, the pump I had wasn’t cut out for the job. But this one was perfect for the job. Definitely buying another one.