Alita AL40 Linear Air Pump

Quiet with air to spare so happy with this purchase.
running 15 sponge filters with lots more spare air.
not to mention I have air lines 12 feet from pump.
very quiet.
fast shipping and great customer service what more could you want. (Posted on 7/22/2015)

I was looking for a replacement air pump for my Super Luft. (very noisy). I was skeptical about how quiet this pump could be. Even through it received good reports. I am very pleased with its quietness. You can hardly hear it running. It has more than enough power for my needs but I didn’t want to get cut short with effectiveness. I would highly recommend this pump to anyone. (Posted on 8/30/2014)

I have been using an Alita AL-15 running 18 large sponge filters with no problem in tanks up to 30 gallons, but it would not operate the additional tanks I was adding. I added 20 more tanks and needed more air. The Alita AL-40 was a great price with free shipping and I am very happy. I have plenty of air to each air stone connected to the sponge filters. I think I could run another 10 outlets. The surplus air is being vented. Connecting the pump outlet to my manifold system was a small challenge but it is working fine. (Posted on 9/13/2010)

My AL-40 has been in continuous service since June 2006 and has been operating flawlessly. This pump generates a LOT of air: mine is currently running 14 standard (low back pressure) airstones at "full blast" in 3 large freshwater aquariums (50, 75 and 125 gal) and I have plenty of air to spare, I estimate it could easily run 20 - 24 airstones. To minimize back pressure I suggest using 1 inch OD, 3/4 inch ID vinyl tubing for the main run to the aquariums, then connect one or more distribution manifold(s) (AquaCave item number AE-GV-SS) to convert to standard aquarium airline tubing. Even though the pump outlet is a bit smaller than 3/4 inch (I think its 11/16 inch) a standard automotive hose clamp provides an airtight connection to 3/4 ID tubing. My only complaint is that replacement air filters are hard to find, but I clean mine every few months with ordinary soap and water, dry it with paper towels and its good to go. Bottom line: pricey but worth it. (Posted on 3/28/2010)

This pump is awesome!
I am running 18 airstones and it can run another 20+.
I cannot believe how quiet it is.
I can just barely hear it if I try hard.
I will be getting another unit soon.
You will be very pleased with it. (Posted on 3/25/2010)