These are made in the USA locally by us in central PA. Unlike other sites we actually have in stock the items we are selling that can ship usually same day as we do not use drop shippers.
Our 700 gph internal overflow box / surface skimmer is made of strong black cell cast acrylic that unlike non cell cast acrylic, doesn't melt or chip during manufacturing. Cell cast acrylic is 10X stronger then ABS manufactured overflows, and 10X stronger then the same thickness glass.
The measurements are approx. 3"W x 3 1/2"D x 5"T.
Works great with 10-55 gallon aquariums This is great for medium sized tanks or those just looking to hide plumbing.
We recommend a return pump of 700 gph or less.
Easily attaches using aquarium silicone