Duplex Extract Filter (unsewn)Based on combining our 2" primary spraybooth extract filter with our secondary fine filter to create an EPA compliant filter system for spraybooth extraction systems. Primary extract filter (often known as paintstop) has a large paint holding capacity and forms the first layer of filtration from the spray booth designed to catch the majority of spray paint overspray. The secondary filter is finer to remove more particles from the extracted air, and is