black quad 8” sealed sub box, fits 19-25 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 7 1/8" -NEED A CUSTOM CUTOUT (GIVE US A CALL) -AIR VOLUME: 2.90 FT^3 -2 INDIVIDUAL CHAMBERS (2 SUBS PER CHAMBER) -VOLUME PER SUBWOOFER: 0.72 FT^3 -WEIGHT: 57 LBS. -MOUNTING DEPTH: 7 1/4" (WITH A 6” MAGNET DIAMETER) -FRONT BAFFLE THICKNESS 1 1/4" DIMENSIONS: -FRONT HEIGHT: 9 3/4” -REAR HEIGHT: 6 1/2" -LENGTH: 53" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -FORWARD FIRING NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER OR MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS