The FAMCO Plastic Bath Fan / Kitchen Exhaust Roof Vent with Stem, also referred to as a BVDS Exhaust Vent, is made of High Density Polyethylene (HDP). HDP is one of the most versatile and widely used plastics available. Outdoor integrity is maintained in this, and all of our plastic products, by the addition of UV inhibitors, which protect the material from deteriorating in the sunlight. The stem on the BVDS can be removed for hard connect applications and the screen can be removed for use as a roof mounted dryer vent.

Famco Exhaust Roof Vent, Series: BVDS, 5-7/8 in ID x 6 in OD, Round, Polyethylene, Black, 14-1/2 in L x 12-3/4 in W, Domestic

• Made of long life narrow molecular polyethylene with a brittleness temperature of -99 deg F
• It has ultraviolet/antioxidant additives for resistance and color fastness, thus the life of plastic will outlast most roofing materials
• Back draft dampers, bird screen and bottom stem installed in all units
• Bottom stem is removable
• 28.27 sq-in free area
• With stem