| | |  | Overflow Boxes/Kits | Home » » » » Eshopps PF-800 Overflow Box - Up to 125 gal. | | | | | | | Description: | | Advanced U-tube style compact overflow boxes are designed to fit between your tank and your wall to maximize space usage in your aquarium setup. With only 3 in. required between your tank and your wall, these boxes are excellent for optimizing space. Each box includes everything required to attach it to your system and comes with a foam prefilter. It's always a good idea to achieve greater volume in your aquarium; do it the easy way with one of these overflow boxes. Each unit includes a U-tube tube, cylinder foam, nylon screw & wing nuts, black pre-filter box & 1 in. bulkhead. Advanced U-tube style compact overflow boxes are designed to fit between your tank and your wall to maximize space usage in your aquarium setup. With only 3" required between your tank and your wall, these boxes are excellent for optimizing space. Each box includes everything required to attach it to your system and comes with a foam prefilter. It's always a good idea to achieve greater volume in your aquarium; do it the easy way with one of these overflow boxes. Each unit includes a U-tube tube, cylinder foam, nylon screw & wing nuts, black pre-filter box & 1 in. bulkhead.
Click here for directions on how to install your overflow system . | | | Features: | |
• Single intake
• U-tube
• cylinder (round) foam
• pre-filter box
• 1" bulkhead
| | | Product Details: | | | Product Weight:
| 4.16 pounds | | Package Length:
| 12.4 inches | | Package Width:
| 11.2 inches | | Package Height:
| 8.5 inches | | Package Weight:
| 3.9 pounds | | Average Customer Rating:
|  based on 2 reviews |
| | | | Customer Reviews: | |
Average Customer Review:
 ( 2 customer reviews )
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Most Helpful Customer Reviews
 It does the jobNov 06, 2011
By Joseph A. Cushing
"joecom7624"
I have this overflow except it only has 1 U tube. I think my U tube is bigger. The overflow works fine. It's designed to maintain prime throughout the duration of a power outage. Mine had an internal leak that cause it to loose prime after about half an hour of no power. I fixed it with some PVC cement. I recommend you test yours for this leak before you leave the house with it running. Just get it going and then shut off your pumps. Then wait hours and watch the water level in the center chamber. It should stay at the top.
If you dump water into the center chamber quickly, air bubbles can go up the U tube and cause it to lose prime. When filling my tank with new water, I put the hose from the trash can into the hole in one of the sponge filters and that stops the bubbles from getting in there. You just always have to be mindful of prime when you are messing with it. If you cause it to lose prime, you sump will empty itself on the floor via your main tank. I guess that's why the U tube is clear. Being clear means you have to put a brush in it sometimes to clean out algae but at least you can see, at a glace, if you lost prime while you were adding water or moving it or whatever you are doing to it.
0 of 4 found the following review helpful:
 Don't Waste your Money buying this product.!!!Apr 23, 2011
By Eduardo Rosales
This overflow doestn't work, the U tube desing always creates a lot of bubbles loosing the shyphon. I prefer to make a DIY PVC Overflow.
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