HVAC Premium 16" X 25" Aluminum Return Filter Grille for 1" Filter - Easy Airflow - Linear Bar Grilles [Overall Size: 18.5"w X 27.5"h]

HVAC Premium 30'' X 14" Aluminum Return Grille - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875'' w X 15.875'' h]

HVAC Premium 26" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 28 5/8"w X 18 5/8"h]

HVAC Premium 14 x 28 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 16.5 x 30.5

HVAC Premium 8" X 8" Aluminum Return Grille - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 9.875"w X 9.875"h]

HVAC Premium 20 x 32 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 22.5 x 34.5

HVAC Premium 14'' x 4'' [Duct Opening] Flat Stamped Steel Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover - White [Outer Dimensions: 15.75''w X 5.75''h]

HVAC Premium 34 x 28 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 36.5 x 30.5

HVAC Premium 4'' x 14'' [Duct Opening] Flat Stamped Steel Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover - White [Outer Dimensions: 5.75''w X 15.75''h]

HVAC Premium 14 x 24 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 16.5 x 26.5

HVAC Premium 25 x 30 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 27.5 x 32.5

HVAC Premium 20 x 25 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 22.5 x 27.5

HVAC Premium 8'' x 22'' [Duct Opening] Flat Stamped Steel Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover - White [Outer Dimensions: 9.75''w X 23.75''h]

HVAC Premium 6'' x 22'' [Duct Opening] Flat Stamped Steel Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover - White [Outer Dimensions: 7.75''w X 23.75''h]

HVAC Premium 12 x 18 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 14.5 x 20.5

HVAC Premium 24'' X 20'' Steel Return Air Filter Grille for 1'' Filter - Fixed Hinged - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 26 5/8''w X 22 5/8''h]

16" X 25 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 18.5 X 26.75]

HVAC Premium 30'' x 8'' [Duct Opening] Flat Stamped Steel Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover - White [Outer Dimensions: 31.75''w X 9.75''h]

HVAC Premium 32" X 10" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 34 5/8"w X 12 5/8"h]

HVAC Premium 30'' x 6'' [Duct Opening] Flat Stamped Steel Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover - White [Outer Dimensions: 31.75''w X 7.75''h]

HVAC Premium 22 x 6 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 24.5 x 8.5

HVAC Premium 18" X 36 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 20 5/8" X 38 5/8"]

HVAC Premium 24 x 26 Duct Opening Steel Return Air Filter Grille, for 1-inch Filter, Removable Door, Flat Stamped HVAC Vent Cover Grille, Outer Dimensions 26.5 x 28.5

25\" X 25\" Aluminum Return Grille - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 26.5w X 26.5\"h]