Oval gas vent for durable; corrosion-resistant; double-wall
Amerivent Oval Type B fits Type B, BW and 2x4; see install guide
Has the same cross-sectional area as a 4 inch round pipe
This 4 in. x 5 ft. Oval Pipe is a great choice for your heating, ventilation and air conditioning (HVAC) system. This durable pipe is made of galvanized steel. Quality construction.
