Premium overflow boxes for wet/dry aquarium filters
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Effectively transports aquarium water to under cabinet sumps
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Bulkhead fittings allow convenient and secure aquarium plumbing
Quality overflow boxes feature bulkhead fittings for secure and convenient installation. Use these easy-to-install overflow boxes to transport aquarium water to under cabinet sumps, refugiums, or wet/dry filters. Gravity-feed system eliminates the need for complicated drilling or aquarium modifications.
Includes: U-tube, cylinder (round) foam, nylon screw and wing nuts, pre-filter box, and 1" bulkhead on all. PF-1800 has 1-1/2" bulkhead.
Model
Dimensions
Usage
Intake
Max Flow Rate
PF-300
6" x 3" x 10" H
Up to 75 gallons
Single
300 gph
PF-800
8" x 3" x 10" H
Up to 125 gallons
Single
800 gph
PF-1000
9" x 3" x 10" H
Up to 200 gallons
Dual
900 gph
PF-1200
10" x 3" x 10" H
Up to 300 gallons
Dual
1,000 gph
PF-1800
12" x 4" x 10" H
Up to 500 gallons
Dual
1,600 gph
Please click on "More Information" for directions for use.
Directions for Use
Assemble the parts making sure that the water exits from the Intake Box through the U-tube and into the Pre-filter Box.
The siphon is started by first filling the aquarium until water flows into Intake Box. Then carefully fill the Pre-filter Box with a cup or two of water. Suck the air out of the U-tube using clear airline tubing (1 ft) until the U-tube is full of water. This is done by bending the airline and inserting it into the U-tube. Be sure the ends of the U-tube are fully submerged so that no air can enter. You may need to add more water to the boxes as you do this. The siphon is now primed and water will automatically reach an even level in both boxes.
NOTE: No air must be allowed to enter the U-tube if the siphon is to be maintained.
If the level of water in the aquarium increases, it will enter the Intake Box and will then siphon into the Pre-filter Box. The water level in the Pre-filter Box will rise until the water flows into the Exit Tube where it will empty into the sump. The main water pump in the sump will then return the water back into the aquarium and continue this cycle. As with any overflow system, it is critical to maintain constant water levels by means of a top-off system or by regular top offs.
Testimonial By:
Testimonial:
Josh B Truckee, CA
Great product. It has been installed on a 125 gallon reef tank for almost a year now and I have had no problems with it losing suction. A great product and an alternative to drilling your tank!
Excellent Overflow Box. Always restarts without incidents. Have been using the PF-800 for 6 months and made it through 3 power failures no problem, not to say how many feedings when pump is shut off. Nice solid construction!
Only thing I had issue with is they claimed up to 800 gallons an hour, I could only get around 450 with 1" pipe straight to sump.
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Quality overflow boxes feature bulkhead fittings for secure and convenient installation. Use these easy-to-install overflow boxes to transport aquarium water to under cabinet sumps, refugiums, or wet/dry filters. Gravity-feed system eliminates the need for complicated drilling or aquarium modifications.
