LIKE A GLOVE. THIS PRECISION-MADE SLEEVE ENSURES A PERFECT FOOLPROOF FIT FOR YOUR THRU-THE WALL AIR CONDITIONER. DESIGNED TO FIT ALL STANDARD 24-INCH UNITS THIS THRU-THE-WALL AIR CONDITIONER SLEEVE ACTS LIKE A WEATHER-PROOF SEAL TO MINIMIZE HEAT LOSS AND PROTECT THE UNIT FROM THE ELEMENTS. IT ALSO ACTS AS A NOISE BUFFER REDUCING NOISE TRANSMISSIONS FROM THE GREAT OUTDOORS INTO THE GREAT ROOM-OR ANY ROOM. CONSTRUCTED OF GALVANIZED STEEL WITH A DURABLE PAINTED FINISH YOU CAN BET THIS QUALITY-MADE SLEEVE IS IN IT FOR THE LONG HAUL. FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" MINIMIZE HEAT LOSS AND REDUCE OUTDOOR NOISE TRANSMISSIONS INTO THE ROOM CONTAINS FRONT AND REAR COVER PANELS TO SEAL THE SLEEVE WHEN UNIT IS REMOVED EASILY ADJUSTABLE INCLUDES ADJUSTABLE MOUNTING BRACKETS AND LOCKING CLIPS WEATHER SAFE PROTECTS UNIT WITH WEATHER-TIGHT SEAL