For anyone looking to save a little money on the Hydro Turf, the B grade is an option. I've ordered 4 sheets total over a year and a half period and I haven't been able to find what would downgrade it on any of the sheets. Not all the color and pattern option but it's cheaper. I used the black diamond pattern.

http://hydroturf.com/products/Closeouts_and_Specials/Sheets_of_Turf