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Home » Saltwater Aquarium Supplies  » Overflow Box  » External Boxes  »  CPR CS90 Overflow Box
CPR CS90 Overflow Box

CPR CS90 Overflow Box

Average Rating 4.5 116
In Stock: Order by 6PM EST for same-day shipping (M-F)
Item #:
CR1513
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MSRP: $144.95
Was: $114.00
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$96.90
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CPR CS90 Overflow Box Information


Product Manuals & Documentation

Feature(s):
  • For glass or acrylic aquariums up to 125 gal.
  • Flow rate 600 GPH.
  • 8" wide
  • 1" bulkhead outflow
A built in overflow is the most efficient method of draining aquarium water to a filter. If your aquarium does not have built-in overflow, CPR Continuous Siphon Overflows/Prefilters are the best means for getting water from an aquarium to a filter system without expensive modifications to the tank. They quietly skim up to six times more water than units with tubes.

The advantages of CPR Continuous Siphon Overflows/Prefilters include:
  • Adjustable water level allows you to easily change the level in your tank.
  • Black top reduces algae growth.
  • Quiet operation.
Tip: We recomond the use of an Aqua Lifter pump with the CPR overflows for trouble free operation. Another alternative is to hook the bleed hose from the overflow to the air intake of a power head. This way the overflow will continue to wok if it drawes some air into it or in the event of a power failure it will restart.

Overview and Installation

What's in the Box

  • overflow box
  • overflow screen
  • 1" bulkhead
  • 1" slip strainer
  • foam ring for drain
  • 8" piece of airline tubing
  • air release tube for drain

 

Product Manuals & Documentation

CPR CS90 Overflow Box
Owner's Manual available for download in Adobe PDF file format


Manufacturer Info

CPR Aquatic Aquarium Supplies
In Arcata, located in Northern California, the sea is a way of life. From the advanced Marine Biology department at Humboldt State University, just up the hill from CPR’s headquarters, to Humboldt Bay, about a mile west, CPR is nestled in a perfect environment to develop equipment for marine aquariums. CPR was started in a small garage in 1987 to produce biological filters for local aquarists. People who used CPR filters were impressed by the high quality and affordable prices. Word spread and the company grew. Since then, CPR has expanded to a 10,000 sq. ft. production facility and has developed many innovative products over the years. CPR is incorporating new ideas and technologies all the time. Their goal is to allow aquarists to place the highest performing products in their tanks at reasonable prices.

Warranty

1 year manufacturer warranty.  All warranty services are provided by the manufacturer.

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CPR CS90 Overflow Box Reviews



Average Rating
(116 reviews)
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of 12
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Works great

by
Reviewers Rating Excellent!


Posted: 6/9/2013 from JOHNSTON, IA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: CPR items always have impressive fit and finish, but I wasn't sure how well a overflow like this would work for a non drilled tank. I am very happy with it. Working great, came with good instructions and coupled with an aqualifter pump it makes me wish I had installed a sump years ago.


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Meh ok

by
Reviewers Rating Average


Posted: 3/24/2013 from FORT COLLINS, CO UNITED STATES
2.5 5
Experience Level: Intermediate


Comments: It is a bit annoying having to keep the aqualifter pump and tends to make a lot of noise.


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Pretty decent

by
Reviewers Rating Great


Posted: 3/9/2013 from SAN DIEGO, CA UNITED STATES
4.0 5
Experience Level: Expert


Comments: The trick to avoiding an overflow is to place the return pump inside a second chamber within the sump. In the unfortunate event that your siphon overflow fails, only the water inside the chamber will be pumped into your aquarium. Naturally, you should account for the extra water from that chamber to completely avoid flooding.


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NICE PRODUCT

by
Reviewers Rating Excellent!


Posted: 3/6/2013 from WEST SENECA, NY UNITED STATES
4.5 5
Experience Level: Intermediate


Comments: I have this box on my 125 W/ 55 gal sump. It is performing well beyond my expectations. ONE HUGE BIT OF ADVICE DO NOT GET A AQUALIFTER PUMP WITH IT. DO NOT!!!! The thing broke down on me a couple of times and almost overflowed the tank. Use a power head of some type that has a airline attachment to keep the syphon going.


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Good

by
Reviewers Rating Excellent!


Posted: 2/26/2013 from Saint Paul, MN UNITED STATES
4.5 5
Experience Level: Intermediate


Comments: I have been using a CPR overflow box for many years . I started having a problem lately with it not skimming the water surface. What I found out after trying different things was the the actual built in over flow was actually being choke off inside out of sight by those little tube worms and the like. I didn`t know how I was going to clean them out as you can`t get a tool of any kind in there. Solution Removed the overflow From the system Used real hot water and banged on the outside of the tube area with a screw driver handle. I couldn`t believe how much stuff had grown in there,It Came out in chunks like small bricks. It took a few times to clear it out as you can`t see inside the tube. Working just like new again. Hope this helps someone with a slow over flow problem.


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So far it works well

by
Reviewers Rating Great


Posted: 2/7/2013 from Boise, Idaho
4.0 5
Experience Level: Intermediate


Comments: Be prepared to set up a Durso Standpipe with this product. It is REALLY noisy. It makes all sorts of gurgling sounds. Almost like you're flushing a toilet constantly. But once you make the Durso the noise is reduced significantly. I wish CPR would automatically include something like this. Other than that it does it's job and is working well.


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cpr overflow

by
Reviewers Rating Excellent!


Posted: 1/7/2013 from WYTHEVILLE, VA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: great product


0 of 1 People found this review helpful, did you? Yes No




No worries

by
Reviewers Rating Excellent!


Posted: 11/29/2012 from BOONE, NC UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: I was really nervous about setting up an overflow and sump. This made it easy. Good instructions and videos. CPR and Customer Service are always helpful, too.


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No Issues

by
Reviewers Rating Excellent!


Posted: 11/20/2012 from EL CAJON, CA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: Easy setup and have had no issues, definitely better then my home made one.


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Lid Not Included??????

by
Reviewers Rating Great


Posted: 11/4/2012 from LOS ANGELES, CA UNITED ST
4.0 5
Experience Level: Intermediate


Comments: Great Product but the lid is not included!!!!!!!!!!..... it does make a lot of noise. If it had a lid this wouldn't be an issue. I guess the lid is available on the Deluxe model but that is not offered on this site. And the lid is also not available on this site. If I was going to purchase this again I would buy the Deluxe Model.


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of 12
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