If you are push to open you are actually in luck in terms of your selection of gate openers. One of the main factors when your gate is pull to open is the size of the post or column. If your post or column is too large then at time you will need to use a gate opener that is larger (and more expensive) than what you would otherwise need for your size gate to accommodate the large setback. So for this situation you would want to answer the questions in our gate opener specification tool to determine the best opener for your gate size, power availability, and usage: http://www.gatecrafters.com/gate_openers.aspx