BOTA - Block Out The Air - Mail Slot Insulator - Installation

insulation, polyethylene sheeting, duct tape, foam gaskets, and tension mail slot in the door, consider installing an outside mailbox and stuffing

mail slot so that the home remains insulated against the elements USPS mailbox guidelines require any horizontal mail slot to be hinged at

mail slot mailbox Installation instructions for an Elite Model DraftDodger™ Insulated Mail Slot

mail slot for front door mail slot so that the home remains insulated against the elements USPS mailbox guidelines require any horizontal mail slot to be hinged at