Marine Depot

Marine Depot Overflow Box OF-300

$67.99 $57.79 Save: $10.20 (15%)

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In stock in our East and West Coast warehouses

MD8141

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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-300

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
Marine Depot Overflow Box OF-300 Can this be used in the Uk ( UK PLUG )
Asked : Nov 19, 2019
By : John, England
 
 
 
A
This can certainly work in the UK as it does not have any plug.
Answered : Nov 19, 2019
By : MD TECH
 
Q
What is the internal box dimensions? Trying to determine if it will fit in the back chamber of a 29g biocube.
Asked : Oct 30, 2018
By : Dave, North Carolina
 
 
 
 
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Overall, others give this:

  • 4.3

6 Reviewers (100%) would recommend this

Overall Rating:

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5  Star
 3
4  Star
 2
3  Star
 1
2  Star
 0
1  Star
 0
 
5
5.0
Good overflow box for beginners
reviewerbadge
REVIEW
This overflow was easy to setup and maintain. The included sponge silencer is great since it reduces the overall noise.
  • 1
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5
5.0
Good overflow, excellent with tweaks
reviewerbadge
PROS
Good construction and easy to use
CONS
Needs slight modification for quieter operation
REVIEW
I purchased this to replace an overflow I've had going for over 20 years that was pretty old and worn. This new one is well-constructed, and I especially liked the slim profile that allowed me to move it behind the tank without needing to push the tank and stand too far off the wall. It was easy eno...Read More
  • 1
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4
4.0
Overflow Box

reviewerbadge
PROS
good alternative to taking your tank down to drill it
CONS
uses the syphon tube
REVIEW
This is a well made product. Personally, I used mine for six months or so and now it is up for sale. I just don't trust syphon tubes. It does work well with the high level sensor which will shut off your return pump.
  • 1
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3
3.0
Packaged in a hurry?

reviewerbadge
PROS
Shipping speed
CONS
Materials missing
REVIEW
I ordered the OF-300 and the package arrived on time, except what was inside wasn't my order. MD fixed the mix up and rushed my order to me, that also arrived on time. When I opened the box, the foam sleeve was missing and the silencer tubes were in two separate pieces. Maybe it's not a big issue, b...Read More
  • 1
Was this review helpful: Yes(2)No(0)
 
 
 
4
4.0
Pretty Good

reviewerbadge
PROS
Pretty silent, Easy setup, Dont have to drill tank
CONS
No instructions, leaky bulkhead that needs silicone
REVIEW
This overflow is pretty dang good. Its easy to set up and its mostly silent. There are a few small issues though. It doesnt come with directions so youll need to look them up on Youtube. The bulkhead leaks not matter how tight. I had to silicone it. Other than that, I love it.
  • 1
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5
5.0
Excellent Product

reviewerbadge
REVIEW
I run one of these box's on my 55g corner tank and it works great! It is very quiet, doesn't leak, and is very durable. It's slim design and foam sleeve make it able to be put anywhere. Would recommend it to anyone.
  • 1
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Write Your Review Earn 15 Points when you write a review
Sort by:
 

Overall, others give this:

  • 4.3

6 Reviewers (100%) would recommend this

Overall Rating:

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

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