Active Aqua Air Pump, 4 Outlets, 6W, 15 L/min

Very low power

Excelente, no hace ruido y pude conectar con llaves 12 miniacuarios de 2 litros

Pros: Cheap, works well, adjustable flow (and noise). Cons: Power cord is EXTREMELY thin - susceptible to physical damage. The unit could be quieter but it is fairly quiet (to expect it to be quieter seems like asking 'too much' considering the good performance and great price. EDIT on full blast this unit is the quietest device in the room :) I HIGHLY recommend this unit. Once again I must say it is fairly quiet and I am extremely pleased.

Have this pump on set up on my DIY Hydroponic setup - I travel a lot for work so I have this air pump and my grow lighting on an automatic timer and the air pump has operated extremely efficiently. I have no complaints. It can get a little loud if you turn it all the way up to high, but I really have no need to run it that high and the setting I have it on is quiet and effective. It would have been nice if it came with tubing, but I purchased the tubing and valve accessories separately for a great price here on Amazon!

Funciona, pero es mas ruidoso de lo que esperaba

This is my second purchase of this pump. The 4 valves are great for air stones, sponge filters, etc. And it's very powerful, with a nob to adjust the amount of air. I'm using one for my 90 gallon (3 air bubbles, 1 sponge filter), the other for 2 aquariums, 2 valves for each! It's also a great price, especially for 4 valves (big Al's charges $70 plus). A 2 valve pump is $27 on amazon, and it's not REMOTELY as powerful (I've bought 2 different brands before giving up and buying this one again!) My only quibble is that they are loud. But, I'm guessing that in order to provide the power that this pump definitely has, it'll never be quieter?