Hammond 1590w series watertight diecast aluminium enclosures natural hammond 1590wlb this hammond 1590wlb enclosure measures 505 x 505 x 31mm and is part of a range of natural finished watertight diecast aluminium boxes suitable for a wide range of applications hammond 1590wlb watertight diecast enclosure natural 505 x 505 x 31mm