Ideas for sealing up a drafty through-wall mail slot

Ideas for sealing up a drafty through-wall mail slot through wall mail slot chute Item Description · Heavy-Duty Mail Drop Box · Good-Sized Storage Bin & Slot · Adjustable Chute · Secure & Rainproof Design through wall mail slot Durabox Through The Wall Mail Slot, Two Piece Features · FUNCTIONAL - A mail box chute designed to be installed through a wall · HEAVY DUTY COSNTRUCTION -

through wall mail slot Highway through wall letter chute · The LS17 Highway mail chute is an adjustable vertical chute system designed for delivering mail through brick walls and piers

through wall mail slot sleeve Through Wall Letter Chute External Wall Application Stainless Steel LBD Dimensions of letter slot: 45mm x 255mm Correspondence suitable: A4 and C4 wall-letter-drop-slot Mail Slot with Optional Receptacle: https:www