USPS Approved F-Spec Front Loading Cluster Box Units (CBUs)
Centralized mail delivery system with greatly enhanced security. Designed to meet or exceed newest USPS standards. Each CBU is 30-1/2" wide, 62" high (installed) by 17-7/8" deep. Every CBU has an outgoing mail compartment and parcel locker. Made of rust and rot proof aluminum and stainless steel.