Product Type: | Return Filter Grille |
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Wall Opening (Inches): | 14" x 14" |
Width (Wall Opening): | 14" |
Height (Wall Opening): | 14" |
Color: | White |
Overall Size: | 15-3/4" x 15-3/4" |
Material: | Steel |
Application: | HVAC |
Series: | 673 |
This item is part of Hart & Cooley's 673 series of return air filter grilles.
According to the manufacturer these can be used without a filter without any adverse effects on the grille.
Yes, item 43522 is the 24" x 12" Series 673 return air filter grille.
Please see the following sheet for sizing information: http://s3.pexsupply.com/manuals/1299695763612/49830_PROD_FILE.pdf