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  • Silent Air® B11 Series Battery Operated Aquarium Air Pumps, Single Outlet, UL Listed
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Silent Air® B11 Series Battery Operated Aquarium Air Pumps


List Price: $21.99
Price: $15.29 + $5.99 shipping
You Save: $6.70 (30%)
In Stock.
Ships from and sold by Petsolutions.
Pump - No Strip
  • Reliable and long lasting perfomance during a power outage.
  • The ººbubblesºº come ON when the power goes off!
  • Detects any loss of AC power and turns on automatically.
  • Attractive & compact design fits almost anywhere.
  • Requires two "D" size batteries (not included).
9 new from $13.79 1 used from $11.99

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$15.29 + $5.99 shipping In Stock. Ships from and sold by Petsolutions.

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Size: Pump - No Strip
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Product Details

Size: Pump - No Strip
  • Product Dimensions: 4.8 x 2 x 8.2 inches ; 9 ounces
  • Shipping Weight: 8.8 ounces (View shipping rates and policies)
  • ASIN: B004PBIKHU
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (58 customer reviews)
  • Amazon Best Sellers Rank: #43,456 in Pet Supplies (See Top 100 in Pet Supplies)
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Product Description

Size: Pump - No Strip

The Silent Air® B11 Battery Powered Air Pump is a powerful and versatile air pump that will aerate your aquarium during a power outage or when there is any interruption to your AC power. A must for any aquarium, the Silent Air® assures continuous aeration of your tank giving you peace of mind and keeping your fish safe. This air pump provides your tank with needed air whenever the AC power is interupted. Simply connect your Silent Air® pump to your air line or aerating stone, insert two "D" size batteries (not included), plug into any AC outlet and turn the on/off switch to the ON position. The Silent Air® will now continuously monitor your AC power to detect any interuption and will turn on automatically as needed providing your fish with life-saving aeration during a power-outage. Designed for extended operation, the Silent Air® B11 uses two large "D" size batteries that insures hours of continuous operation. The Silent Air® provides enough air for most aquariums up to 55 gallons in size and can also be used for transporting fish or for use in temporary tanks while cleaning your aquarium. Whether you have a tripped breaker, a blown fuse or complete power outage, the Silent Air® B11 Battery Powered Air Pump will give you hours of needed air when you need it most. It is recommended that you test your Silent Air® periodically by unplugging the AC cord with the unit ON which should activate your pump. Batteries should be tested and changed as needed. The AC power cord is for power detection only and will not charge your batteries. Requires 2 Alkaline "D" batteries (not included) that can provide full power for up to 48 hours depending on the life of your batteries. Length of operation with battery power will vary depending on the quality and age of the batteries used. Placing unit on a shock absorbing surface will minimize vibrational noise. Measures 5.5"Hx 3"Wx 2"D and has a 5' power cord for easy placement.

Customer Questions & Answers

Customer Reviews

4.3 out of 5 stars

Most Helpful Customer Reviews

24 of 24 people found the following review helpful By Craig on August 28, 2011
Size Name: Pump - No Strip
In the 18 months I've had my current aquarium I've had two blackouts and this product has saved my fish each time. I've had no loss of life while it's been the sole source of aeration. I can't confirm the manufacturer claimed 48 hour run time because I've never had to run it that long. But it definitely runs at least 8 hours in my experience with no signs of slowing down, and with fresh batteries I don't doubt it would run an additional 40.

It will automatically detect a power outage and turn itself on, so you don't need to be there to activate it (just make sure the power switch is always set to "on"). You plug its power cord into an outlet and that is how it detects a loss of power. But the power cord neither powers the unit, nor can it charge the batteries. This is strictly a battery-operated back-up system and is not intended to be an everyday air pump. The supplied air line is absurdly short for most applications, so be sure to pick up your own. Also be sure to purchase and insert a back flow preventer (not included) into the air line to prevent water from flowing back into the pump, which will destroy it. I gave this product 4 stars instead of 5 because it is absurdly loud, which is unacceptable in an era where most manufacturers have found a way to make these things whisper quiet. How loud is it? Even if you put this thing in a cabinet, if your aquarium is in your bedroom you would never be able to sleep. Despite that one complaint, every aquarium owner should have one of these. I consider it as essential as having a heater and filter.

EDIT: I was without power for a week after Hurricane Sandy. I can now confrim that it lasted 6 straight days on the same set of batteries I mentioned earlier in this review that ran 8 hours a year ago. A fresh set should give you at least 7 days. Outstanding.
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16 of 16 people found the following review helpful By Neal O. Morris on October 4, 2005
Size Name: Pump - No Strip
It's not all that silent but it sure lasts a long time. An 8 hour blackout, no problem..all specimens survived in the salt water tank! Sweet....
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12 of 13 people found the following review helpful By Ambria Lee on May 4, 2009
Size Name: Pump - No Strip
I bought this since I live in Florida and the storms that come through here can leave people with no power. At first I had my doubts about this. So this is what I think of it.

Pros: small, uses D batteries, last a long time, works when power is out and delivers what it is supposed to do.

Cons: Loud. this thing is loud but I have an aquarium cabinet and I put it under there on the shelf and I never heard it when the power went off. So if you have it out in the open, it will be loud. Suggest placing a cloth or something underneath it so it will cut down on the noise.

Overall, I love it and will not be without one. I only gave it 4 stars because it is so loud. The rest is definitely a 5 star.
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10 of 11 people found the following review helpful By Imhonored on March 28, 2011
Size Name: Pump - No Strip Verified Purchase
This product does exactly what it says it does. It is a good system for an emergency aquarium pump that cuts on automatically when the power cuts off. Very convenient when it happens while you are at work or away from the house. Some have said this model makes a lot of noise, but I do not think the fish will complain that they are getting airflow in an emergency. The noise is not that loud, IMO, and it can be muffled if placed inside a cabinet, such as those that most aquarium stands have. It takes two D batteries, not included. The tubing that comes with the product is only about 12 inches in length, so for my system, that was inadequate. But it accepts standard tubing that you can purchase at your local pet store. For a few bucks you can get about 6' of tubing.
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6 of 6 people found the following review helpful By Debra J. Griffin on November 26, 2011
Size Name: Pump - No Strip Verified Purchase
I live in a area where power can go out for long period of times. I have had this for a while now and have seen it work. It turns on instantly when the power goes out, even if the power only flickers. It works well, but it is extremely loud. I'm giving it a 4 due to the noise.
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4 of 4 people found the following review helpful By Lakeman on September 8, 2011
Size Name: Pump - No Strip Verified Purchase
Got the pump last week, lost power over the weekend for 6 hours,cut on automatic , good because I wasn't home. Only con is a little noisy. Short period,not a issue.Solved my problem.
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6 of 7 people found the following review helpful By Hopels on June 19, 2012
Size Name: Pump - No Strip Verified Purchase
We live in NC and hurricanes and outages happen frequently here. We also like to travel for 5-10 days at a time. While we have someone watch our SW tank we can't expect them to fire up the generator if the power goes out while we are gone. I plugged this into an outlet, ran some tubing into a suction cup air stone in the tank (I used a check valve) and voila! I was safe(r) from power outages. The air flow is surprisingly good, even through a check valve.

Note: I don't think you need an air stone. You can just tie the air line to your mag float and drag it down near the bottom of the aquarium. Make sure you test it to make sure you get good surface agitation though.

I have no idea how long it runs but I imagine you could tie in an extra battery bank very easily and it would run for a week. 48 hours seems to be the average after doing research. You need extra air line to run this thing as well as a check valve.
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3 of 3 people found the following review helpful By Aquarist on July 6, 2010
Size Name: Pump - No Strip Verified Purchase
This is the second one I've purchased. We did have a power outage during the winter in which we lost power for almost 3 days. This worked great to say the least. I have a battery back-up system but with no power there is not a way to recharge it so when it went dead these keep running because all you have to do is replace the D cell batteries which I didn't have to do...very efficient!!! It can be a little noisy when it is running but definitely something you can live with as it is only temporarily. You won't be sorry owning this product!!!!
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