Improved airflow
"Purchased these to replace ceiling vents on my second floor rooms. The builder placed two vents in each room near exterior walls with standard two way vents but the air circulation in the rooms never felt right. Replaced all with these three way vents and felt an immediate difference since it helped push air across the room more. The vents are well built, all steel and very easy to swap. Remember to remove and measure your existing vent openings to be sure you get the correct size."
