Marketing InformationThe Famco JVXP J Vent rooftop ventilator is great for attic (static) ventilation and can be used with most roofing materials. This model features a 3 in bottom stem for a flex pipe connection and is designed for bathroom ventilation. It provides a low silhouette and is open on two sides for better air flow. It helps eliminate attic moisture and heat build-up. This roof vent works best when used with soffit or gable end venting. Comes with a built in 1/8 in screen. Quality constructed from heavy duty 28 to 26 ga galvanized steel, depending on size. Available in black or brown. The Famco JVXP J Vent rooftop ventilator come in opening sizes ranging from 3 to 8 in dia. The Famco JVXP J Vent rooftop ventilator is manufactured by Famco in the United States and comes with a 1 year warranty against product defects and workmanship.