Rockville REC120 Quad 8″ Ported Bedlined Sub Box for 2007- Current GM Crew Cab

Features: 3/4 inch MDF Silver Tipped Screw Down Spring Loaded Terminals Finished with Bed Liner Specification: Air Space: 0.80 Cubic Feet per sub Mounting Depth: 11.25 inch Tuning Frequency: 33Hz