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Salsbury Outgoing Mail Slot Plug Kit - for 4C Horizontal Mailboxes

Model # 3770
usually ships within 1-2 days


FREE SHIPPING on all orders within the continental United States in December!

11.875" W x 1.75" H x 0.875" D
2 lbs

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Salsbury 3700 Series Outgoing Mail Slot Plug Kit - Private Access


  • Outgoing Mail Slot Plug Kit for Private Access 4C Horizontal Mailboxes
  • Manufactured by Salsbury Industries
  • Ideal for private postal centers, corporate mail centers, military bases, government agencies and many other applications where outgoing mail collection is not required
  • Constructed of heavy duty aluminum with a durable powder coated gray finish
  • Salsbury Industries is an ISO 9001:2015 certified company and has excelled in the field of manufacturing since 1936