Compact round body instrument enclosure for use with threaded screw cover to provide easy access to interior; High strength, lighter weight, corrosion resistant copper free cast aluminum construction; Available with a blank or lens cover, flat or domed; Cover O-ring, Nitrile (BUNA-N) material, supplied standard supplied standard for a Type 4X rating; Cast mounting lugs are standard on all boxes; Internal ground screw supplied on all boxes; Electrostatically applied gray powder epoxy/polyester finish on exterior of box; Offset feed-thru conduit openings (3/4” NPT) for maximum use of interior volume; Interior X”-configuration mounting pad for instrument/device cast into the bottom of the box provided for flexibility