Salsbury 3700 Series 4C Horizontal Mailboxes Double Column - ten MB1 Doors and two PL5s - Front Loading 4C horizontal mailboxes are U.S.P.S. Approved Manufactured by Salsbury Industries to USPS-STD-4C Specifications Ideal for apartments, non industrial developments and industrial structures Required for key remodels and new construction U.S.P.S. basic 4C requires at the least one parcel locker for every ten tenant compartments For outdoor or indoor use Constructed of heavy duty aluminum and stainless steel hardware Feature a durable powdered coated finish Doors include a heavy duty cam lock with a dust/rain shield and three keys MB1 doors are 13.25 W x 3.25 H in. Available in configurations that are two door wide A compartment equivalent to 2 3.25 in. high basic doors is used for outgoing mail collection and is labeled Outgoing Mail The front of the outgoing mail compartment is comprised of two fixed panels and there's zero U.S.P.S. master lock access door Outgoing mail compartment includes a 10.75 W x 0.75 H in. mail slot and weather protection hood Include factory installed 0.75 W x 0.25 D in. trim plus one or two heavy duty back access door s with latches and continuous hinges Custom engraved placards Custom engraved doors - regular Custom engraved doors - black color filled Replacement tresses Additional keys Key blanks Size - 31.13 W x forty one H x seventeen D in. Color - Sandstone Item Weight - 140 lbs....