CPR CS202 Aquarium Overflow Box
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.
- CS Overflows feature a grated inlet.
Specifications:
- Model: CS202
- Flow Rate: 1500gph
- Outflow Size: Two 1" Bulkhead
Item No. OF-CPR-CS202
1 Review
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it is good but best?
The product is really nice it doesn't make noise like it says and it does flow very well. I did have a problem with it on my tank which is an old Oceanic The intake side wasn't down far enough for my water level to be where I wanted it to be, so I had to cut down the intake side of the box. It wasn't hard to do but I still had to do it for it to work right on my tank. I would think that on tanks of today it works perfect.
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CPR CS202 Aquarium Overflow Box 
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