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AmeriVent® 4OF
The type B designation is assigned to gas venting systems that meet the safety requirements of Underwriters Laboratories, Inc. The AmeriVent all-metal, double-wall gas vent is listed as type B by UL and is approved for residential and commercial applications such as Category 1 water heaters, boilers, furnaces, space heaters, or wall heaters. UL-approved type B gas vent products form a continuous passageway from an approved gas appliance to the termination of the vent above the roof of the structure.
AmeriVent® Vent Flashing, 4 in, 14-3/4 in Length, 23 in Width, 14 in Height, Oval Shape
| Height | : | 14 in |
| Length | : | 14-3/4 in |
| Size | : | 4 in |
| Width | : | 23 in |
| Additional Information | : | Oval Shape |
- Installed either parallel or perpendicular to the roof ridge
- Fits roof pitches flat to 5/12
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