I have one on my 120. They are nice, but I do not like the screen on the bottom. I have a lot of surface agitation in my tank and the wave will catch the screen and the surface tension of the water will hold it down. They are manufactured in one pass on a CNC router table. Putting the mesh on the bottom keeps them from having to flip them over and reset.
I actually have mine on upside down right now until I get a chance to reconfigure my pumps.
I bet the screening material is difficult to get both tight and straight, especially it they use the type with 1/4" holes. Wazzel mentioned that they should put the groove for the spline on the top to minimize the sagging. They probably think it looks better on the bottom.
If I build one it won't look as refined because it will be constructed of 2" wide strips of poly-carbonate that will need to be joined at the corners. I calculated that I can build the top for about $70.
Thanks. Thinking about making one out of strips of polycarb. I would need to glue the ends with Weldon 16 and cut the groove with my dremel. Under $100 but not as nice as the Artfully Arcrlic.
How far in from the edge is the channel for the spline?
I did this exact same thing. Works fine and doesn't look too bad.
1/4" from edge to center of spline.
I did this exact same thing. Works fine and doesn't look too bad.