Lockdown Gunsaver 18 Inch Dehumidifier - Protect What MattersThe GUN SAVER Dehumidifier works by slightly increasing the air temperature inside the gun safe or other enclosure. This allows the warm air to circulate throughout the safe on a continual basis, eliminating humidity, mildew and condensation; all of which are dangerous to your expensive firearm collection.Features : Eliminates Humidity Mounting Bracket Included