Back Ceiling, 3 1/2 or 4 in Round/octagonal Box
Class I, Divisions 1 and 2: The Purpose of Seals in a Class I Hazardous Location Is to Minimize the Passage of Gases and Vapors and Prevent the Passage of Flames From One Electrical Installation to Another Through the Conduit System. Seals Are Required To

• Application: Class I, Divisions 1 and 2: The Purpose of Seals in a Class I Hazardous Location Is to Minimize the Passage of Gases and Vapors and Prevent the Passage of Flames From One Electrical Installation to Another Through the Conduit System. Seals Are Required To Back Ceiling, 3 1/2 or 4 in Round/octagonal Box General Purpose
• Color Rendering Index (CRI): 65