vent-miser 91668 programmable energy saving vent, 12-by-6-inches, white [bottom part of vent measures 12x6 in]

everyone has got a couple of rooms in their home that don't need constant heating or cooling. manually closing and opening all those vents before and after work seems like, well, more work! some vents are difficult to access too. the clever vent-miser replaces your existing vents and includes a timer that auto opens and closes vents on the day and time of your choice. save big bucks on your electric bill with a simple upgrade. replace your vents with the vent-miser today! SKU:ADIADIB000MWTI9K

Simple 7 day, 3 button programmable timer Unique design provides mounting on floor, ceiling, and walls Removable timer module for easy programming and battery installation Low battery alert Heavy-duty construction