4″ to 5″ Type B Gas Vent Oval Increaser from the OV Collection
This oval gas vent increaser allows you to adapt 4″ diameter pipe to 5″ diameter pipe when required for your application.
The OV series offers oval gas vent pipe and fittings and can be used for Type B, Type B 2×4, Type BW and Type B 2×6 depending on the pipe size. It features a snap together die formed ends, and is UL 441 listed. Note: Special factory supplied parts are required to use 4″ OV as Type BW vent.
Features:
Materials: Aluminum inner and Galvanized steel outer pipe
Minimum Safety Clearance to Combustibles:
1″ for diameters of 3″ to 24″
2″ for diameters 26″ to 48″
Fuels: Gas
UL Listed: UL 441
Warranty: Lifetime Limited Warranty
Additional Metalbest Links
View the Manufacturer Warranty
Specifications
| Configuration | Increaser/Reducer |
| Material | Aluminum, Galvanized Steel |
| Pipe Class | Type B |
| Pipe Shape | Oval |
| Vent Construction | Double Wall |
| Manufacturer Warranty | Limited Lifetime |
| Approved for Commercial Use | No |
| Certifications | UL |
| Pipe Inside Diameter | 4, 5 in. |
| Fuel Type | Gas |
| Color | Galvanized |
| Color Tone | Neutrals |
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