Showing 49–72 of 479 results

12″ X 12″ Duct Opening | Filter Included Steel Return Air Filter Grille for Sidewall and Ceiling

$43.98

12″ X 12″ Duct Opening | HD Steel Return Air Grille for Sidewall and Ceiling

$19.54

12″ X 12″ Duct Opening | Steel Return Air Filter Grille [Fixed Hinged] for Sidewall and Ceiling | Outer Dimensions: 14 5/8″W X 14 5/8″H

$40.77

12″ X 12″ Duct Opening | Steel Return Air Filter Grille for Sidewall and Ceiling

$44.77

12″ X 12″ Duct Opening | Steel Return Air Grille for Sidewall and Ceiling | Outer Dimensions: 13.75″W X 13.75″H

$21.51

12″ x 20″ [Duct Opening] Aluminum Return Air Grille | Rust Proof Eggcrate Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 13.75″ X 21.75″

$38.79

12″ X 20″ Duct Opening | Steel Return Air Grille for Sidewall and Ceiling | Outer Dimensions: 13.75″W X 21.75″H

$45.55

12″ X 24″ Duct Opening | Steel Return Air Grille for Sidewall and Ceiling | Outer Dimensions: 13.75″W X 25.75″H

$33.55

12″ X 6″ Duct Opening | Steel Return Air Grille for Sidewall and Ceiling | Outer Dimensions: 13.75″W X 7.75″H

$13.25

12″ x 8″ [Duct Opening] Aluminum Return Air Grille | Rust Proof Eggcrate Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 13.75″ X 9.75″

$37.89

12″ X 8″ Duct Opening | Steel Return Air Grille for Sidewall and Ceiling | Outer Dimensions: 13.75″W X 9.75″H

$18.00

12″W x 10″H Steel Adjustable Air Supply Grille | Register Vent Cover Grill for Sidewall and Ceiling | White | Outer Dimensions: 13.75″W X 11.75″H for 12×10 Duct Opening

$27.62

12″W x 12″H [Duct Opening] Aluminum 4-WAY Adjustable Air Supply Grille | Register Vent Cover Grill for Sidewall and Ceiling | White | Outer Dimensions: 13.75″W x 13.75″H

$45.11

12″W x 12″H [Duct Opening] Aluminum Return Air Filter Grille | Rust Proof Eggcrate Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 14 1/4″W X 14 1/4″H

$48.78

12″W x 12″H [Wall Opening] Anodized Aluminum Exterior Wall vent Gable shed for Crawlspace, Outdoor, Doors, Attic | Weatherproof, Rain&Rust Proof, Overall: 14″W X 14″H

$54.99

12″W x 12″H 4 WAY Fixed Curved Blade Air Supply Diffuser | Register Vent Cover Grill for Sidewall and Ceiling | White | Outer Dimensions: 13.75″W X 13.75″H

$37.87

12″W x 14″H [Duct Opening] Return Air Floor Grille | Vent Cover Grill for Floor – Brown| Outer Dimensions: 13.75″W X 15.75″H

$38.75

12″W x 16″H [Duct Opening] Return Air Floor Grille | Vent Cover Grill for Floor – Brown| Outer Dimensions: 13.75″W X 17.75″H

$42.20

12″W x 20″H [Duct Opening] Return Air Floor Grille | Vent Cover Grill for Floor – Brown| Outer Dimensions: 13.75″W X 21.75″H

$48.65

12″W x 24″H [Duct Opening] Aluminum Return Air Filter Grille | Rust Proof Eggcrate Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 14 1/4″W X 26 1/4″H

$66.27

12″W x 24″H [Duct Opening] Return Air Floor Grille | Vent Cover Grill for Floor – Brown| Outer Dimensions: 13.75″W X 25.75″H

$58.37

12″W x 30″H [Duct Opening] Return Air Floor Grille | Vent Cover Grill for Floor – Brown| Outer Dimensions: 13.75″W X 31.75″H

$55.29

12″W x 4″H [Duct Opening] Baseboard Return Air Grille | 7/8″ Margin Turnback to Fit Baseboard | White | Outer Dimensions: 13.75″W X 5.75″H

$13.74

12″W x 4″H Steel Adjustable Air Supply Grille | Register Vent Cover Grill for Sidewall and Ceiling | Black | Outer Dimensions: 13.75″W X 5.75″H for 12×4 Duct Opening

$17.90