JBL MTC-81BB8

MTC-81BB8 - Pre-Install In-Ceiling Backcan for 8138, 7.4 liter (0.26 cu ft) internal volume, 7" (178mm) height x 11-3/4" (300mm) dia, 11-1/4" (286mm) bolt-mounting circle (BMC), 16 gauge (1.3mm thick) steel with powdercoating (Priced as each; sold in pack of 4pcs)

Harman P/N: MTC-81BB8; Dims (LxWxH): 14 x 3.5 x 15 in