Introducing the Penfield TRIPLE post , a new contemporary approach to the traditional mailbox post. This TRIPLE “Y” shaped post with ornate base #7, is designed to accommodate three E1 economy mailboxes, or three Lewiston mailboxes that’s mounted at the top of the post. The post is made from rust-free aluminum with a durable weather-resistant powder coated finish. We design and build all of our TRIPLE post system in house. This allows us to tailor our multi-box mailbox systems to suit the needs of our customers. All of our standard mailbox systems can be made into multi-box systems. We can build double, triple, quad systems, up to eight box mailbox units using posts, bases, and finials from our Builders Series Standard and Westhaven Mailbox systems.