These filters are compatible with all standard booths with the exception of our Kool Koat Bench Top Booth. Bench Top filters can be found here Our 80/20 (80% cellulose / 20% polyester) cartridges blend fine synthetic polyester fibers throughout the full depth of the cellulose media which cannot be eroded away over the service life of the filter, unlike "melt blown" or "nanofiber" media. Our 80/20 blend (PP) cartridges offer improved efficiency, moisture-resistance, and dust cake release...