Super Luft Air Pump Model SL-38
air to spare
This is a great pump, I am running 4- 12" air stones in a 90 gal and have a line to my 55 gal with four more 6" stones and have air spare!
February 3, 2015
Awesome little monster pump
Pump seriously does put out a lot of air volume. Louder than average air pump, but considering the amount of output, I would not complain about that.
May 17, 2014
Strongest output pressure/flowrate we've found
We use the pumps for an unusual purpose - to pressurize bottles to force water out of the bottles into an online chemical metrology instrument. We don't want to just use compressed air because bottles tend to blow up somewhere above 15# pressure and you never know when a regulator will leak by and cause the bottle pressure to reach 150#. These pumps provide somewhere between 3.5# to 5# at an essentially shutoff head and safely force the water out of bottles. We could probably use a shutoff head of 8-10#, but that's wishful thinking.
March 31, 2014
Replaced all other airpumps
I was able to replace my other air pumps and run all of my air needs with this one pump. I have three DIY fluidized filters, a few stones and 2 sponge filters running on this pump with plenty of air to spare. The pump is marginally noisy, but it's moving some air.
If you buy this pump, I would add some splitters for your tubing as the throttled attachment only had 4 ports. I organized my air needs and can adjust the flow to each group of air needs.
March 2, 2014