Do you need to plug some open fittings or lines? How about some unused or open ports? Earl's Performance carries an extensive line of plugs to do perform every job properly. These plug are available in plastic and aluminum, hex-head and Allen-head, a variety of shapes, sizes, and thread types--including AN, AN O-ring sealing, and pipe threads. For plumbers and mechanics, having an assortment of plugs in your tool chest can be invaluable when you're In the middle of a project.