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  • Penn-Plax Silent Air B11 Battery Operated Air Pump
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Silent Air® B11 Series Battery Operated Aquarium Air Pumps

74 customer reviews
| 3 answered questions

List Price: $25.99
Price: $15.56 & FREE Shipping on orders over $35. Details
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In Stock.
Pump - Refurbished
  • Conveniently battery operated Great if AC power is out
  • Measures 5.5"Hx 3"Wx 2"D and has a 5' power cord for easy placement.
  • The Silent Air pump will continuously monitor the AC power and will turn on automatically as needed providing continued aeration during a power-outage
13 new from $13.79

$15.56 & FREE Shipping on orders over $35. Details In Stock. Sold by Fat Happy Pets and Fulfilled by Amazon.

Frequently Bought Together

Penn-Plax Silent Air B11 Battery Operated Air Pump + PENN PLAX Standard Airline Tubing Air Pump Accessories, 25-Feet + Jardin Aquarium Fish Tank Ponds Ceramic Air Stone Diffusers, 40mm Diameter
Price for all three: $23.90

Buy the selected items together


Product Description

Size: Pump - Refurbished

This Silent Air B11 Battery Powered Air Pump is a great back up air pump that will aerate your aquarium during a power outage or any interruption of your AC power. Perfect for any aquarium, the Silent Air pump provides continuous aeration of your tank keeping your fish safe. This air pump provides your tank with needed air whenever the AC power is interrupted. Penn Plax Inc. has been in the business of making quality and innovative pet products for over 50 years.

Product Details

Size: Pump - Refurbished
  • Product Dimensions: 2 x 3 x 5.5 inches ; 8 ounces
  • Shipping Weight: 8.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004PBIKHU
  • Item model number: SAB11
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (74 customer reviews)
  • Amazon Best Sellers Rank: #14,418 in Pet Supplies (See Top 100 in Pet Supplies)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

30 of 30 people found the following review helpful By Craig on August 28, 2011
Size: Pump - Refurbished
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: Pump - Refurbished
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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14 of 15 people found the following review helpful By Ambria Lee on May 4, 2009
Size: Pump - Refurbished
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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12 of 13 people found the following review helpful By Imhonored on March 28, 2011
Size: Pump - Refurbished 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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8 of 8 people found the following review helpful By Debra J. Griffin on November 26, 2011
Size: Pump - Refurbished 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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6 of 6 people found the following review helpful By Lakeman on September 8, 2011
Size: Pump - Refurbished 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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4 of 4 people found the following review helpful By Aquarist on July 6, 2010
Size: Pump - Refurbished 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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6 of 7 people found the following review helpful By Hopels on June 19, 2012
Size: Pump - Refurbished 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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