Eshopps AEO11005 Overflow Boxes Pf-800 for Aquarium Tanks

El producto es bueno; sin embargo, lo malo es que llegó roto, ya no lo quise cambiar porque me urgía, pero se debe tener más cuidado con el traslado, porque es evidente que aventaron el producto y por eso se rompió.

Picture doesn't reflect the actual product. The PF-800 is a single inlet overflow box. Having said that, this thing works pretty great. I hear people say these are really loud. I can say it's almost quiet. My wife and I both removed how "quiet" the aquarium is with this new box. It gets a little unnerving. Now that I am used the quietness of our family room aquarium I must say something about this overflow box that I kind of figured out through trial and error. This overflow box has stopped siphoning two or three times. Depending on your set up this could be a big problem where all of you water from you sump could overflow your tank. What I figured out is depending on how you have it hanging on the tank could cause the U-Tube to be so deep (in the blox box inside your aquarium) that it's touching the bottom which causes it to lose siphon. I rounded out a soda bottle cap and put it under the tub u-section. The siphon works great now with no problems. I don't think it's necessarily a design issue but rather how i set my water level in the display tank. Maybe E-Shopps could provide a little shorter tube. I would recommend this box to anybody. Just be aware that if you are losing siphon please put something under the U-tube to lift off the bottom of the black box. Doesn't need a lot of lift. Just enough to allow the water to flow into the over flow.

product works excellent. tried a few blackout tests and it starts back up everytime, tube never empties so it keeps its siphon, excellent product.

perfect arrived fast works like a charm

After reviewing many similar products, I took a leap of faith and purchased this unit to service a 90 gallon tank with 20 gallon sump. It was a little more expensive, but I decided I didn't want to deal with potential pitfalls of cheaper models. The unit came promptly; is made of substantially thick Plexiglas, has a appropriate size fill box that allows depth adjustments to vary water level and volume; siphon hose is also very sturdy. I have tested three times and the unit works well to "auto start" upon power failure or water level falling short. The unit is also very quiet, provided you make sure no bubble is in the siphon hose. A bubble causes drain at sump to sputter. Bubbles are easily removed by lowering the fill box to maximum level thereby increasing flow which pushed out bubble, then readjusting fill box once bubble escapes tubing. Negatives: the unit as indicated in picture, does not come equipped with a cover for back water unit as shown in some other models. I made my own but really not necessary. The drain attachment is a bit larger than my current piping to sump, and required an resizing adapter if you have similar issue. Though the fitting is larger than my requirements, I imagine it would service a much larger tank. Happy with purchase.