The Perfect Balance In-Door Return Air Pathway is a grille installed into the bottom of interior doors. By adding a Perfect Balance In-Door Return Air Pathway to each of your interior doors， each room is balanced， allowing them to be conditioned equally. This removes hot and cold spots within the home， improves the HVAC system's performance， reduces energy use， improves indoor air quality and adds comfort to your living space. Easily installs into a notch cut into the bottom of your door. At 3 Pascal achieves 250 CFM of air flow (pressure relief). Durable ABS plastic with interior baffle to mitigate noise and light. Fits most standard size doors.

Alternative to costly jump ducts or dedicated room fresh air returns

Eliminates pressure imbalances

Meets ENERGY STAR and R2000 standards

Allows HVAC systems to run more efficiently and reduce energy consumption

Perfect for new and existing homes

Inexpensive， easy to install， no moving parts

Internal noise and light diminishing baffle

Durable， high impact ABS plastic， white and paintable

Improved bathroom fan performance

Lifetime guarantee