Insulate a mail slot

The No-Draft Mail Slot has two door flaps, both spring loaded and weather-stripped, as well as an internal brush strip for greater insulation and privacy

INSULATING LETTER-BOX SLOT FOR METAL-, PVC-U AND WOODEN DOORS Function mail: info@ outside inside door-leaf door-leaf

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

wolfrace slot Communication Panel and Mail Slot · Speaker Tube Product # CDSH6834 See product · Mail Slot for Glass Doors 2 products · Insulated Mail Slot