The patent pending GBS2000 gate box is designed to make it easy for installers in the field. With just two cuts to the gate, the upper and lower housing of the GBS2000 easily slides together onto the frame to create a gate box. Made from cast aluminum and powder-coated black, it is weather-resistant for any exterior application and installs on 2" square gate frames without welding. Compatible with 2830 & 2835 Mechanical Keyless Locks.