Didn't fit in the tank
924948
It was nice but not great plastic and it did not fit in my tank so i was forced to return
3815603
Too short and won't fit around the tank...  Can't return it, as I tyre away the box and I built it...  Going in the trash!
1492958
The valves are to close to tank had to use adapters,The hose was to short. Should have bought just the valves.
3631000
I had the same problem as others with this - the pieces that are supposed to cap the rods on the back side to hold the suction cup to the box are too small.  Would have to rig something up to get it to work.  Company really needs to fix this.  Otherwise the box is very high quality but it's useless if you can't anchor it to the side of the tank.
4199606
When I searched for a tank lid for a 40b this company came up. I thought wow what a great price. When I received it today it didn't fit a 40b. It even states on the package it came in its for a 30,38,45 gallon tanks. Beware of this!!
1539558
As the other review states, it doesn't seem to fit like it should: "...looks like they took a bottle off a generic 5 gal."

You can likely find something in the recycle bucket that will work just as well
617986
My turtle is 4.5 inches across and 5 inches long, she sinks this. Although it looks cool and fits nicely into her tank, she doesn't use it.
4932147
The height is not correct for a 29-55 gallon aquarium and the gaps along the side at top and bottom did not prevent fish from getting into the protected area.
3248928
Unlike the white one I received, this tank was tight-fitting and appeared to be the wrong size.  For the money, I am very disappointed that the quality control is not better! The company should send me a replacement. Mi am so tired of sending back products that are incorrectly sized.  If the white tank had not fit perfectly, I would have deduced that the tank ran small, but that was not the case.  The tank was mis-sized.  What a pain in the neck!!!!
2848374
I cut it in half and there is still no room for a tank filter.  I wish there was a way to fix this, there is not.  It is sitting lopsidded on my aquarium.  Not sure why they would make this glass without space for a tank filter.
24293
Had great hopes for this, but the piece that fits over the rim of the tank is too thick, and I couldn't fit the tank top back on over it.  So, basically a wasted purchse...
4661072
It's pretty and looked adorable in our fish tank. But our beta just got stuck in it! We had to fish the poor guy out. He's a little Japanese fighting fish; so be careful your fish doesn't get stuck in there.
3592163
It was really hard to get  pump to fit inside of shell. It took a while cause tube kept bending and shutting off water
4264127
While it fit our tank, our turtle had a hard time with the plastic ramp and its steepness.  If we scooted him up the ramp into the box on top, it was too closed in for him and he'd get right out of it.  My husband basically modified the entire thing by using a previous floating dock we had and cutting out the plastic flooring.  Our turtle can now get up on his old ramp, be out of the water under his heating lamp, and still be "enclosed" safely.
2842506
After a lot of searching, this assembly came up as best.  It includes the pump and sender inside of a steel tank.  I did need to return it because it did not fit the vehicle.  The AMAZON Make Sure It Fits feature said it was a perfect fit.  Garbage in - Garbage out.  I also had to pay to have it shipped back to AMAZON.

I would recommend looking at Spectra Premium before making a purchase of this type.
2600157
Doesn't fit in the small eye dropper type plastic paint bottles
2942099
it didn't fit in our fridge... it has the extra lip on the bottom that made it stick out just a tad too far so I couldn't snap the filter door shut.  I returned this product