Don't let outside noise intrude on the inside performance When you require theatre ventilation, emergency fire venting, and... * Acoustical Integrity * Reliable Performance * Long Product Life Specify the fire vent that provides all three. BILCO Acoustical Fire Vents are designed to provide a barrier against outside noise intrusion and at the same time provide necessary emergency automatic heat and smoke venting or manual ventilation. This unique design has gasketed and specially insulated upper and lower doors which open simultaneously when heat breaks the fusible link. The vents can be factory modified for easy operation from the stage area when you specify motorized or manual winch operation options shown below. These vents carry an STC rating of 45 and an onc rating of 37. The BILCO Acoustical Fire Vent's reliability and durability will provide you with peace of mind... and your client with peace and quiet. Specify Bilco, a quality perfonnersince192~ ...-. .............®_ . -- Standard BILCO Thermolatch® Optional motorized operation Optional manual winch operation -------The BILCO Company, P. O. Box 1203, New Haven, CT 06505 (203) 934-6363, FAX (203) 933-8478 See our full product line in Sweet's®