PRODUCT DESCRIPTION New construction housing for use in insulated ceilings can be in direct contact with thermal insulation. Rated for use with IOLITE Series fixtures CONSTRUCTION Housing 0.040" Aluminum shallow housing constructed of Aluminum with integral bar hangers Air Flow Restriction Meets requirments of Air tight (AT) <2CFM (cubic feet per minute) in accordance with ASTM- 283 Air-Tight requirements. Bar Hangers Two 13-3/4" to 24-1/2" adjustable bar hangers with captive nails are included on housing. Bar hangers are parallel to junction box, but can be repositioned 90º perpendicular to junction box if desired. "L" Shaped bar hanger foot to align to bottom of construction joist. A T-Bar notch allow for easy installation in a suspended ceiling. Junction Box Prewired 25 cubic inch 0.064" thick galvanized steel, with seven 1/2" knockouts, four Romex® pryouts, and snap on covers. All leads are #18AWG wire, the ground wire is connected to the bottom, and quick connectors are supplied on all leads. Through branch circuit wiring, (4-in, 4-out).