Longman Dictionary of Contemporary English
draught excluder
noun
EXAMPLES FROM CORPUS
▪ In a crisis it could have doubled as a draught excluder or, if the pub got rough, as a cosh.
Wiktionary
draught excluder
n. A flexible strip attached to the bottom of an interior door to prevent draughts entering through the gap
Wikipedia
Draught excluder
A draught excluder or draft stopper is used to eliminate cold draft and slow heat loss. It is placed in the bottom crack of doors and windows. Tubular sand-filled fabric draught excluders are commonly referred to as "door snakes" in Australia.
Usage examples of "draught excluder".
They didn't say through gritted-together teeth: ``If you do that again I'll cut your bollocks off and nail them to the letter box as a draught excluder!