Housing: .032 (#20 ga.) aluminum. UL listed convertible IC/NON-IC. 2” vertical adjustment in ceiling. Can be removed for access to junction box and ceiling plenum. AirSeal® housing minimizes air leakage to less than 2 CFM at 1.57 PSF (or 75pa), which complies with Model Energy Code (Section 602.3.3) and Washington State Energy Code (Section 502.4) and reduces heat loss and condensation in ceiling. Mounting Frame: .048 (#18 ga.) galvanized steel. Locks into position along length of mounting bars with locking spring and bendable slot. (3) slots 90° apart simplify alignment. Junction Box: 2”X 4” X 3 1/2” (22 cu. in.) .032 (#22 ga.) galvanized steel. UL listed for maximum of 8 (#12 ga.) through branch circuit conductors. Integral cable clamps permit attachment of non-metallic (#12 or #14 ga.) Romex® cable without tools or additional connectors.