Main Category : 4C Series High Security Horizontal Mailboxes - USPS Approved / SUITE G -- SERIES 4C HIGH SECURITY HORIZONTAL MAILBOXES -- 54.75" HIGH 4C High Security Horizontal H4CGT2-19 19-Tenant Door Unit (Double Column) plus (2) 4-High Parcel Locker Doors and (1) Outgoing Mail Door; Unit Size: 54.75"H x 31.5"W x 17"D Q 1 $1,256.00; +3 Call 4C High Security Horizontal H4CGT1-9 9-Tenant Door Unit (Single Column) plus (1) 4-High Parcel Locker Door and (1) Outgoing Mail Door; Unit Size: 54.75"H x 17.5"W x 17"D Q 1 $719.00; +2 Call 4C High Security Horizontal Surface Mount Collar H4CG1SM Surface Mount Collar for 4C Suite G Mailbox (single column unit) Q 1 $325,00; +2 Call 4C High Security Horizontal Surface Mount Collar H4CG2SM Surface Mount Collar for 4C Suite G Mailbox (double column unit) Q 1 $422.00; +2 Call