Nominal Size : 13 X 18 In Fits Duct Size : 11-1/2 X 16-1/2 To 13-1/4 X 18-1/4 In Mesh Size : 3/4 In Material : Steel Color : Black Finish : Powder-Coated Suitable For : Chimneys
Nominal Size : 9 X 13 In Fits Duct Size : 7-1/2 X 11-1/2 To 9-1/2 X 13-1/2 In Mesh Size : 3/4 In Material : Steel Color : Black Finish : Powder-Coated Suitable For : Chimneys
Nominal Size : 13 X 13 In Fits Duct Size : 11-1/2 X 11-1/2 To 13-1/2 X 13-1/2 In Mesh Size : 3/4 In Material : Steel Color : Black Finish : Powder-Coated Suitable For : Chimneys