Marine Depot

Marine Depot Overflow Box OF-800

$72.99  

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In stock in our East and West Coast warehouses

MD8139

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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.

Includes
  • 1" Bulkhead
  • U-tube
  • Noise-Reducing Cylinder Foam Sleeve
  • Nylon screw and wing nut
  • Surface Skimmer Box
Specifications
Model Tank SizeMax. Rim Size Overflow Body
Dimensions
Surface Skimmer
Dimensions
Max. Flow Rate Drain Size
Nano up to 30 Gal1.5" 4"x2.5"x8" 4"x1.5"x6" 200GPH 3/4"
OF-300 up to 60 Gal1.5" 6"x3"x10" 6"x2.5"x6" 300GPH 1"
OF-800 up to 120 Gal1.5" 8"x3"x10" 8"x2.5"x6" 800GPH 1"
OF-1000 up to 150 Gal1.5" 9"x3"x10" 9"x2.5"x6" 900GPH 2 x 1"
OF-1200 up to 200 Gal1.5" 10"x3"x10" 10"x2.5"x6" 1000GPH 2 x 1"
OF-1800 up to 320 Gal1.5" 12"x4"x10" 12"x2.5"x6" 1600GPH 1-1/2"

Product Manuals & Documentation

Marine Depot Overflow Box OF-800

Owner's Manual available for download in Adobe PDF file format

Manufacturer Info

Marine Depot was started in 1998 by a self-professed reef geek and pre-med student Ken Wong. Ken envisioned a one-stop shop where customers could find everything they needed, from technical product specifications, reef aquarium information, expert advice on the hobby and friendly one-on-one customer support. Having grown from a one-man crew to being one of the world’s largest suppliers of reef and marine aquarium products, this very core philosophy still lives strong in the Marine Depot culture 20 years later.

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9 Questions
Displaying questions 1-9
 
Q
Is this overflow box is self priming?
Asked : Aug 13, 2019
By : Vivek Shukla, Tennessee
 
 
 
A
This unit is not self priming.
Answered : Aug 14, 2019
By : MD TECH
 
Q
What is the little clear tube about 3 inches long used for? Product came with no instructions and seen part at bottom of skimmer.
Asked : Sep 26, 2018
By : Christopher
 
 
 
A
Hi Christopher, here is a link to a video showing how to set up this product https://www.youtube.com/watch?time_continue=57&v=qVBa4uYiRxc
Answered : Oct 01, 2018
By : Kat
 
 
Sort by:
 

Overall, others give this:

  • 4.0

8 Reviewers (88%) would recommend this

Overall Rating:

download image
5  Star
 4
4  Star
 2
3  Star
 1
2  Star
 0
1  Star
 1
 
4
4.0
No directions
reviewerbadge
PROS
Cheap and effective
CONS
No directions
REVIEW
It is put together well, u get a spare utube, the noise isn't too bad if u use the provided sponge and keep the lid closed. My only issue was the lack of directions. Not even the video on the website showed how to begin a siphon. Had to watch 6-7 utube videos till I found one that showed how to d...Read More
  • 1
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1
1.0
Broken piece

reviewerbadge
REVIEW
Second time I had them to send a part that was broken and it still came to me broken so I had to glue it myself or ill be waiting forever to get a none broken part.
  • 0
Was this review helpful: Yes(0)No(0)
 
 
 
5
5.0
Great Product and Features.

reviewerbadge
PROS
Quiet, has a cover on the overflow, well constructed.
CONS
This might be operator error, but it took me a while to figure out that I needed a slip fitting to connect to the drain pipe. The threads on the outside of the drain pipe are for the ring to secure it to the overflow box.
REVIEW
The box has a clear cover that helps reduce noise and evaporation.

I wanted to add a sump to an existing aquarium, so this was the obvious solution. If I was starting from scratch, I would probably go with a built in drain.

The stand-off pipe had a little clear piece of tubing att...Read More
  • 1
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5
5.0
Marine Depot Overflow Box OF-800

reviewerbadge
PROS
Awesome
CONS
None
REVIEW
I bought this for my 125 gallon tank. I had bought a smaller one for my 40-gallon breeder which worked great.
  • 1
Was this review helpful: Yes(1)No(0)
 
 
 
5
5.0
Very Well Constructed

reviewerbadge
PROS
sturdy
CONS
none
REVIEW
This overflow box is very well built. I can't wait to get the rest of the parts I need to get this installed on my tank
  • 1
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4
4.0
Good Value
reviewerbadge
PROS
Easy to setup.
CONS
Handle carefully as parts can break, Can be loud and adjustment may be needed
REVIEW
I purchased this for my 55gal tank so I could replace my canister filter. So far, I'm pretty happy. The air tube was broken when I received the item but Marine Depot offered to replace it promptly. A small dab of aquarium glue did the trick however and no new parts were needed. You do have to adjust...Read More
  • 1
Was this review helpful: Yes(4)No(0)
 
 
 
5
5.0
Best overflow box!!
reviewerbadge
REVIEW
I bought this overflow box to replace my old one. I absolutely love it. Excellent design and very quiet. It's well made and very solid. I bought the OF-800 model for my 60 gallon cube and couldn't be happier!
  • 1
Was this review helpful: Yes(3)No(0)
 
 
 
Write Your Review Earn 15 Points when you write a review
Sort by:
 

Overall, others give this:

  • 4.0

8 Reviewers (88%) would recommend this

Overall Rating:

download image
5  Star
 4
4  Star
 2
3  Star
 1
2  Star
 0
1  Star
 1
 

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