Return Grill Air Filters

Voomi Supply carries return grille filters from Honeywell, Resideo/Braukmann, and Clean Comfort, sized to fit most residential and light-commercial return air grilles. A return grille filter sits behind the grille cover itself, catching dust and debris at the return air opening before it reaches the blower and coil, which keeps the system cleaner and makes filter changes as simple as opening the grille instead of accessing the main unit. Every order ships with Voomi's 30-day return policy and free help matching a filter to your grille.

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MERV Ratings We Carry

MERV (Minimum Efficiency Reporting Value) measures how fine a filter's mesh is, and this collection covers two common ratings:

MERV Rating

Captures

Trade-Off

MERV 10

Dust, pollen, mold spores, and pet dander

Good general-purpose filtration with lower airflow resistance

MERV 13

Everything MERV 10 catches, plus finer particles like smoke and some bacteria

Higher filtration, but restricts airflow more, confirm your blower can handle it

 

Media Filters vs. Standard 1-Inch Filters

Most of the return grille filters in this collection are 3-inch pleated media cartridges rather than thin 1-inch panel filters. The deeper pleats pack more filtering surface area into the same grille opening, which lets a media filter hold a higher MERV rating without restricting airflow as much as a 1-inch filter at the same rating would. If your return grille only accepts a thin 1-inch filter, our Pleated HVAC Filters collection covers that size range separately.

Common Sizes We Carry

Standard sizes in this collection include:

14 x 14

14 x 20

14 x 25

18 x 18

20 x 20

20 x 25

20 x 30

24 x 30

14.5 x 27.5

Custom by SKU

 

Measure the duct opening directly, or match the size printed on your existing filter, rather than the outer grille frame, since frame and filter dimensions aren't always the same.

Frequently Asked Questions

To properly size a return air filter grille:

  • Measure the Duct Opening: Use a tape measure to determine the width and height of the duct opening where the grille will be installed. For example, if the duct opening is 20 inches wide and 12 inches high, the grille should match these dimensions.
  • Account for Filter Size: If you're using a filter with the grille, ensure the grille accommodates the filter's size. For instance, a 20x20 grille should fit a 20x20 filter.
  • Consider Airflow Requirements: Ensure the grille provides adequate airflow for your HVAC system. A general guideline is to select a grille with a free area (the open space through which air flows) that matches or exceeds the airflow capacity of your system.

For more detailed guidance, refer to the sizing chart provided by manufacturers or consult with a professional HVAC technician.

  • A return air filter grille is a component of your HVAC system that allows air to return to the system for reconditioning. It is typically installed in walls or ceilings and includes a frame that holds an air filter.
  • A return air vent, on the other hand, is a broader term that refers to any opening in the HVAC system that allows air to return, which may or may not include a filter.

Yes, installing a return air filter grille is a manageable DIY task:

  • Remove the Existing Grille: Unscrew or unhinge the old grille from the wall or ceiling.
  • Prepare the Area: Clean the area to remove any dust or debris.
  • Install the New Grille: Align the new grille with the duct opening and secure it in place using screws or the provided mounting hardware.

Ensure that the grille is properly aligned and securely fastened to prevent any gaps that could affect airflow.

The frequency of filter replacement depends on factors like air quality and system usage:

  • Standard Recommendation: Replace the filter every 90 days.
  • High-Demand Conditions: In homes with pets, smokers, or high dust levels, consider replacing the filter every 60 days.
  • Low-Demand Conditions: In homes with minimal HVAC usage, the filter may last up to 120 days.

 Regularly checking the filter for dirt and debris can help determine the optimal replacement time.

Yes, return air filter grilles help improve HVAC efficiency by ensuring that only clean, filtered air is circulated back into your system. This reduces the strain on your HVAC system, allowing it to run more efficiently and improving overall air quality in your home.

Yes, return air filter grilles are suitable for both heating and cooling systems. They are designed to handle the return airflow in HVAC systems year-round, whether in heating or cooling mode. 

In most cases, yes, but check with a technician first if you're jumping several ratings at once. A higher MERV filter restricts airflow more, and a blower that isn't sized for it can lose efficiency or strain over time. A 3-inch media filter at MERV 13 is generally safer than a 1-inch panel filter at the same rating, since the extra surface area offsets some of the added resistance.

Yes. Multi-unit orders qualify for quantity-based pricing, and contractors and service companies can set up a trade account for faster reordering. Contact our support team to get pricing on a bulk order or set up an account.