Rena Air 200 Air Pump

This air pump works but it pretty regularly starts making a very loud noise as if it is revving up an unseen engine before the green flag comes down. Unfortunately, it won't stop making this noise until you pick it up, look it over for some hint about why the air pump sounds like an experimental music festival, and then put it back down. Even if you put it in the exact same spot, the Rena Air 200 seems satisfied because it will return to the quiet hum...for a half-hour or so.

I gave it to Goodwill who will hopefully help it find use some place out of ear shot.

I've owned my Rena 200 now for 6+ years and am VERY happy. It's so quiet--almost silent. It is just now starting to loose some of its original power, though still performing well enough for my 30 gallon tank. I'll be replacing the diaphram with the rebuild kit and be ready to go for another run--maybe another 6 years. Great pump. The other reviews which mention the noise are NOT what I have experienced--like I said, running 6+ years now and all super quiet!

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High quality pump that can be adjusted from zero to full output. I'm using it for a bring shrimp grow out container so it is tuned very low. The pump isn't completely quiet and will output a high pitched hum which is probably outside of the hearing frequency range for many adults, however if you can hear it placing the pump inside a cabinet will squelch the sound.

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This small pump exceeded my expection.I only intended to run one 20 gallon fish tank and now i'm runnng two with a maniold installed.It quiet and supplys plenty of air.

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I've had this product for about 2 years now and it's worked fine. Very quite and and I like rena products. I have 3 of their xp filter setups and have been very happy with them. I needed to re-arrange some things with my tanks and the nipple the hose goes on broke off when I tried to remove the hose from the pump. Now the pump is useless.

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