Check the current Gerrity's Supermarkets Ad and don’t miss the best deals from this week's Ad! Browsing the weekly flyers of Gerrity's Supermarkets has never been easier. Now, you can find all weekly sales and ads in one place! Don't miss the offer! On this page, you can see Gerrity's Supermarkets Weekly Ad online. Here it is page 1. Catalogue valid from 08/16 until 08/22/2020.