You’ll need to measure your gutters to determine the size of EasyOn Gutter Guard to purchase.  To get the size of your gutter, measure the top of the gutter, starting at the front top outer lip, straight back to the fascia, just under the roof line.  Our standard version is 5 IN. Wide and designed to fit on gutters 5 IN. or smaller. While our super version is 6 IN. Wide and will fit 6 IN. and 7 IN. Gutters.