Super Sprouter Seedling Heat Mat

The Super Sprouter 20x10 Seedling Heat Mat works well and seems to be well made. The only draw back is the size, it is 10" X 20" but in some ways the usable area is not. Power cord strain-relief is thick therefore it tilts the tray causing the water to run to the other end. Positioning the sprouting tray a little out-of-square solves the problem.