Frost King Exhaust Fan Cover $6.95.

Frost King, Plastic, Exhaust Fan Cover. This is made from weather resistant material. Cleans easily with soap and water. Comes equipped with built-in magnets. Also has extra adhesive back. Measures at 10-1/4-Inch diameter and will fit up to 8-Inch fans.

Frost King HD5 Magnetic Heat and Air Vent Deflector 10″ to 14″  $2.99

 Magnetic Heat and Air Vent Deflector 10″ to 14″Make the distribution of air throughout your home more efficient and make your house more comfortable in any season. During the Winter, the curved air deflector directs warm air down for improved heating. In the Summer point the vents up to direct the air conditioning towards the ceiling for improved cooling. 10″, Extendable to 14″.