GRAINGER APPROVED Filtered Return Air Grille, Removable Face, White, 20 in Max. Duct Height (In.) - 4JRT7|4JRT7 - Grainger
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Amazon.com: 18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else
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Amazon.com: 18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else
![18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else - Amazon.com 18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else - Amazon.com](https://m.media-amazon.com/images/I/41qNqbYtD4L._AC_.jpg)
18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else - Amazon.com
![Amazon.com: 18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else Amazon.com: 18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else](https://m.media-amazon.com/images/I/41yVLaTZf3L._AC_.jpg)
Amazon.com: 18" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] : Everything Else
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Buy 18" X 20 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 20.5 X 21.75] Online in Indonesia. B017CEL992
![021778 - Hart & Cooley 021778 - 25" x 14" (Wall Opening Size) White Steel Fixed-Bar Filter Grille (96AFB Series) 021778 - Hart & Cooley 021778 - 25" x 14" (Wall Opening Size) White Steel Fixed-Bar Filter Grille (96AFB Series)](https://d3501hjdis3g5w.cloudfront.net/images/products/zoom/021778-1.jpg)
021778 - Hart & Cooley 021778 - 25" x 14" (Wall Opening Size) White Steel Fixed-Bar Filter Grille (96AFB Series)
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