Metal security lock boxes in two sizes: ECL-1819F for larger DVRS and ECL-1818F for smaller DVRs. Can also be used for other devices.
BlackECL-1818F: 18" x 18" x 5.5"ECL-1819F: 21" x 21" x 8"Use with ECL-1819HWB or ECL-1819VWB brackets.