HITOP Dual Outlet Aquarium Electric Air Pump, Whisper Adjustable Fish Tank Aerator, Quiet Oxygen Pump with Accessories for 10 to 100 Gallon

Quiet and works well.

The dial doesn't seem to adjust airflow much, but it is powerful enough to run an air stone in my quarantine tank and the sponge filter in my 40 gallon tank with ease. Overall it's surprisingly fairly quiet, though I did also place it on a piece of quilt batting to muffle additional vibration for my own preference. I really appreciate that it came with the pieces to split/join hoses and especially the backflow valves because my kitten is a little turd who has knocked a previous pump into the tank (thankfully I heard it and was able to unplug it right away) and being able to place it safely below the tank inside a cabinet without fear of backflow is a huge relief. I'm quite happy with this, I didn't have huge hopes with the price point but it's been good so far.

I have a 75 gallon freshwater aquarium that has been running for 35 years. I have always used Tetra Whisper air pumps for my air stones.. When my current Tetra air pump failed, I went on Amazon to order another one, and found out that a brand name replacement was like $40!!! Then I saw this item from HITOP.. Suitable for 20-100 gallon aquariums.. $15, and they included a nice length of air line, two small air stones, some T connectors, and even 2 check valves (so water cannot come back down the air line during a power failure).. These accessories alone are worth a couple of bucks! As far as the air pump? Well constructed, dual outlets to power 2 airstones (or use the T connector to merge the output airlines into one airline to power a larger airstone)!! This air pump worked as advertised - right out of the box!!! I cannot comment yet on long term durability, but I can tell you this - the Tetra brand that I have been buying, which now cost $40 - have lasted an average of TWO YEARS.. So I am giving this HITOP branded air pump a chance!!! It puts out as much air as my old Tetra (which was also rated for aquariums up to 100 gallons).. The HITOP air pump is just as quiet as the old Tetra as far as noise level. And the HITOP air pump has a very nice little dial on the back that you can use to adjust airfow depending on the size of your tank..Easy to set up, and easy to use! I HIGHLY RECOMMEND THIS AIR PUMP!!! 5 STARS!!

Great little pump. I needed something that would pump a decent amount of air for a main feature in my tank. This does extremely well in creating the air that I need. The more air you turn it up the pump does make a little more noise. The lower you restrict the noise, the quieter the pump gets. I ended up sticking it on some foam pad because no matter what I did seem to get a little bit of a vibration hum noise from it.

Works great, quiet, has a lot of air volume.

Good quality material for the price I have ran it for 24 hours aday for 7 days and it work great keeping my minnows alive

I have this set for one item currently. Pump is louder than my old one but much more power. It has a low hum and placing it on a pad does not quiet it. However, I'm sure soon we won't even notice it. The dial does adjust the flow a small amount but for the amount of turn it has I would have expected more of an adjustment. In all, a good powerful pump.

Gave us perfect options for airflow. The pump is quiet small and does a great job. The price was right the shipping quick it was perfect for us.

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I’ve been using the HITOP Dual Outlet Aquarium Air Pump on my 10-gallon tank and I’m very impressed. It’s surprisingly quiet (barely audible), even when running continuously, and provides strong, consistent airflow to both outlets. Dual outlets are perfect for running a sponge filter and an air stone at the same time. Build quality feels solid, setup was easy, and it runs cool without vibration. My fish seem more active and the water circulation has noticeably improved. For the price, this pump offers excellent performance and reliability. Highly recommended for small to medium aquariums.

Okay so, looking at all the other reviews I noticed quite a few who were disappointed with this purchase. Usually I don't post reviews despite being pretty much a daily Prime shopper. So, long story short, this is most definitely the best band for your buck. I've used every pump on the market, for the money, this is a really, really good pump. If you want an Eheim, buy one. I'm using this one in conjunction with said pump. Eheim 100 to be specific. The reason for price variance is of course the longevity of both these products. However, both pumps will need to be rebuilt at some point. When it comes time for my Eheim to be rebuilt it's worth it. This Hitop probably can just be replaced. The air flow is outrageous, better than my Eheim. But again different pumps. With all the accessories you really can't go wrong here. I've read also disappointed regarding the provided air lines. They are absolutely fine. Remember, nothing mechanical last forever without maintenance. I really, really hope this Hitop lasts me years! If it doesn't, I'll purchase a new one. Buy this pump if you're looking for a quiet, powerful pump with all the accessories included. I actually got more parts than listed. I hope this helps perspective buyer's. Best bang for your buck, hands down! Sincerely, The Red Tortoise

I like this air pump. I currently have two lines coming from it. It works really well. It's a bit noisier than my last pump. These air stones are rather loud as well. But I do like the round air stones. I like the effect it gives. I like the lines that comes with, very easy to work with. Despite being a bit louder than my other pump, I would purchase this pump again

Have it in my sons aquarium since purchase and no complaints here. Not loud at all either.