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Diaphragm Pump
Diaphragm Pump

Diaphragm Pump

64 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. It can also safely run dry, unlike conventional powerheads. It is quiet and 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 or 5' cable with Neptune compatible 24v plug 
  • 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 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 64 Reviews
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Mark C.
United States United States
Powerful pump, excellent water gun

Well built, very powerful. A 4' lift is no concern for it. When testing it in fresh water I took a quick shot at my kids and it was accurate at 20'.

Travis D.
United States United States
Diaphragm Pump

I recently bought this pump after trying numerous other pumps and not having them work, my problem was trying to pump water from my reservoir which was 15 feet below in the basement. This pump was the answer to my problems and has been pumping reliably since installation.

Julio O.
United States United States
Diaphragm Pump

I was really impressed with the performance of this micro pump. It is pulling water from my RODI reservoir tank in the garage and RODI line goes up and down and across 100 feet!

Bill G.
United States United States
Lasts Forever!

I bought another one of these about 2 years after the first one. I don't have a doubt that it won't keep working, but I wanted another one on hand in case. I have this filling my 250 gallon reef through about 40 feet of 1/4" tubing. I go through about 10 gallons a week. This thing has been running for 2 years like a champ. If the super fancy high priced pumps could match half of this reliability I'd pony up the money, but it's just not a strict dollar to reliability or feature proposition.

Avast Marine Works Diaphragm Pump Review
mark m.
Canada Canada
great pump

works great. this is my second.