New style metering valve for upgrading your Harbor Freight, Trinco, Econoline, TP Tools, Skatblast, Bad Boys blaster, Cyclone, or equivalent blast cabinet. You will need other components necessary for the full upgrade, but this listing is just for the metering valve pictured in the main picture. The bottom red cover in the pictures is not included in this listing. It's only pictured as an example of how the metering valve upgrade is to be installed. Items included in this listing are the metering valve and mounting hardware seen in the first picture. You will need to drill a 1-1/4" - 1-3/8" hole in your bottom cover of your blast cabinet trap door to install these components.