The ANS series has many extra features that enhance its benefits. In addition to improved sealing, the location of the closure screws on the outside provides extra internal space for full board or component mounting capabilities. All hardware is included with the top mount screws being captive to avoid hardware loss. There are many internal bosses, eliminating the need to drill holes for mounting which would require extra gaskets to maintain the NEMA rating. The recessed area on the top is perfect for adding decals.