hmmm, the 10 gallon kit stats the following

NOTE: This kit is designed for aquariums with a rim opening of 9 3/4" x 19 1/2". Custom sizing available on request at an additional cost.

I've measured two different 10 gallon tanks and both have rim openings of 9 1/2" x 19 7/16" so doesn't look like it would fit. Guess i'm going to have to make my own