- Finish: Galvanized
- Length: 18 in
- Material: Steel
- Size: 4 x 18 in
- Width: 7-1/16 in
- Diameter: 4 in
- Manufacturer: Hart & Cooley
- Manufacturer #: 4OP18
- Series: OP
Hart & Cooley® Oval Pipe Duct, Series: OP Series, 7-1/16 in Width, 2-7/8 in Thickness, Domestic