4" Primary Spraybooth - Extract Filter (100mm)As well as offering a larger paint holding capacity, the key advantage of the 4 inch extract filter is the ability to simply peel off the top layer and effectively double the filter life First layer of filtration from the spray booth designed to catch the majority of spray paint overspray. EPA compliant when correctly fitted with our Secondary Extract Filter. Delivered in 20m rolls that are easily cut to size. Choice of three different widths to suit