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Item # 310106-3
The 24"W x 6"H white steel triangle baseboard return grille carries return air back to the HVAC system through a baseboard opening. Powder-coated steel resists dents and rust for years of use, a stronger choice than lightweight plastic covers. The 1-way blade pattern directs air across the room. Select this triangle baseboard return grille by its duct opening size, not the overall face size, so it seats correctly on the first fit.
| Product type | Triangle Baseboard Return Grille |
| Airflow function | Return air |
| Nominal opening | 24"W x 6"H |
| Overall face dimensions | 25-3/4"W X 6-5/8"H |
| Material | Steel |
| Finish | White |
| Mounting location | Baseboard |
| Airflow pattern | 1-Way |
| Airflow control | Fixed |
| Order by | Duct Opening |
| Pack quantity | 1 |
| MPN | 310106-3 |
| Brand | AirGrilles.com |
Choose this triangle baseboard return grille if you need a return-air vent for a baseboard opening. This triangle baseboard return grille carries return air and mounts on baseboard surfaces. It is not designed for floor installation or foot traffic, exterior or outdoor use or dryer exhaust venting. Confirm the airflow function against your HVAC layout before ordering.
Measure the open space between the baseboard and the floor where air passes, then match it to the 24"W x 6"H size above. Do not measure the outer flange. The overall face measures 25-3/4"W X 6-5/8"H.
Position the triangle baseboard return grille over the duct opening with the finished face facing the room. Confirm the frame sits flush against the baseboard surface before marking the screw points. Secure it with the included screws without overtightening, since excess force can distort the frame.
Ductwork, wall anchors, and installation tools are not included.
Clean the triangle baseboard return grille with a soft, damp cloth and mild soap. Avoid abrasive chemicals that can damage the white finish. Dry the surface to keep moisture off the metal.
Use this comparison to confirm the triangle baseboard return grille matches your opening and airflow need.
| Option | Best for | Material | Installation |
|---|---|---|---|
| This triangle baseboard return grille | Baseboard return openings | Steel | Baseboard |
| Return air filter grille | Returns that hold a 1-inch filter | Steel | Wall or ceiling |
| Eggcrate return grille | High-airflow commercial returns | Aluminum | Ceiling |
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Order by the duct opening, not the faceplate. Remove the vent and measure the hole behind it, then order that size. Getting it right the first time means no returns, no reorders, and no waiting on the job.
