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Home » Saltwater Aquarium Supplies  » Overflow Box  » External Boxes  »  Marine Depot Overflow Box Nano
Marine Depot Overflow Box Nano

Marine Depot Overflow Box Nano

Average Rating 4.5 6
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Marine Depot Overflow Box Nano Information

Product Manuals & Documentation

High quality and economical hang-on overflow box allows you to easily add a sump, refugium or wet/dry filter to your system. U-tube design allows for easy and convenient installation. Adjustable pre-filter hight allows you to adjust the water level inside your aquarium.

  • 3/4" Bulkhead
  • U-tube
  • Noise-Reducing Cylinder Foam Sleeve
  • Nylon screw and wing nut
  • Surface Skimmer Box
Model Tank Size Overflow Body
Surface Skimmer
Max. Flow Rate Drain Size
Nano up to 30 Gal 4"x2.5"x8" 4"x1.5"x6" 200GPH 3/4"
OF-300 up to 60 Gal 6"x3"x10" 6"x2.5"x6" 300GPH 1"
OF-800 up to 120 Gal 8"x3"x10" 8"x2.5"x6" 800GPH 1"
OF-1000 up to 150 Gal 9"x3"x10" 9"x2.5"x6" 900GPH 2 x 1"
OF-1200 up to 200 Gal 10"x3"x10" 10"x2.5"x6" 1000GPH 2 x 1"
OF-1800 up to 320 Gal 12"x4"x10" 12"x2.5"x6" 1600GPH 1-1/2"

Manufacturer Info carries more than 7,500 popular and hard-to-find aquarium supplies and fish tank accessories for saltwater and freshwater aquariums. You’ll find the top aquarium equipment and aquarium accessories from Hagen, Red Sea, Eheim, Coralife and many more. All of our aquarium pet supplies carry a 60-day money-back guarantee and we offer a Low Price Guarantee on all in-stock aquarium products. We ship 99.9% of fish tank supplies the same business day if you place your order before 6 PM EST. If you have any questions about fish supplies please do not hesitate to contact us. We’re here to help!

Marine Depot Overflow Box Nano Reviews

Average Rating
(6 reviews)
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Works like a charm!

Reviewers Rating Excellent!

Posted: 9/7/2016 from STERLING, VA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: Been using it for about 3 months now and I can't begin to describe happy I am with it - and how much easier it has made maintenance and water changes compared to my previous HOB overflow. Like the title says, it works like a charm... and the siphon restarts flawlessly each and every time.

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Great product great price

Reviewers Rating Excellent!

Posted: 5/24/2016 from SHALIMAR, FL UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I built a diy sump and didn't want to drill the glass in my 29 gal cube. Did 2 weeks of research before buying this one. It's built well. The screws are big enough to not have to use tools and will last a long time. Took 10 seconds to prime the u tube with the included tubing. did multiple test to make sure it wouldn't lose prime in an outage. Works perfectly every day. (Turn off flow to feed mandarin). Very please with how well it performs and looks like quality build. The only thing missing was directions. But only took 1 minute to figure it out. I would recommend this to anyone who doesn't want to drill their glass.

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Good for money

Reviewers Rating Great

Posted: 5/3/2016 from PIKEVILLE, KY UNITED STATES
4.0 5
Experience Level: Intermediate

Comments: I ordered this overflow after setting up my sump and installed it hours after arrival. I immediately notice how loud it was. So after some tweaking i figured out a solution. First tank the factory standpipe and put it in the garbage. Next cut a piece a 3/4 inch pvc into a 4 1/4 inch piece and use a dremel and sand 1 inch of 1 side of the pipe segment. Insert the new standpipe into the factory bulkhead and prime overflow. If done right overflow noise will be considerably quieter.

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Overflow box

Reviewers Rating Great

Posted: 4/16/2016 from DENHAM SPRINGS, LA
4.0 5
Experience Level: Intermediate

Comments: It is made very well and is very easy to set up. The only problem I have with it is the noise. You can hear the water running all the time.

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overflow box

Reviewers Rating Great

Posted: 3/10/2016 from PONTE VEDRA BEACH, FL UNITED S
4.0 5
Experience Level: Expert

Comments: Very good item. Slight gurgling noise but still a good item.

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Great overflow box

Reviewers Rating Excellent!

Posted: 2/10/2016 from SUMTER, SC UNITED STATES
4.5 5
Experience Level: Beginner

Comments: I've had the overflow box running now for a week and its been great. Easy to set up and put together, but I give it 4 1/2 stars because there are no instructions. Just looked at youtube videos of it put together to figure it out and just took it to my lfs and they showed me how it goes. The connector for it is a 1in connector.

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