Ideas for sealing up a drafty through-wall mail slot

through wall mail slot chute   Dan through wall mail slot sleeve

Size Chute Only INSTALLATION - 8 pre-drilled mounting holes make installation a breeze! thickness of 4-12 and a max thickness of 7-78 thickness of

9'''' Mail Drop Box WAdjustable Chute, Deposit Drop Box WCode Lock, For Letters, Rents, Checks & Keys by VEVOR $$ Open Box Price:$  Shop our wide Through the Wall Mail Box range Many of our through the wall letterboxes feature telescopic mail chutes, and all are lockable and secure

warrior graveyard slot The fully-insulated mailbox system for installation in the door side has flush-mounted, recessed Avantgarde mail slot flaps with finger recess for easy opening  Front load mail slots and through wall mailboxes in wood, plastic, or laminate can be installed standalone or in walls with keyed or keyless