black 8” dual sealed sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 7 1/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. -MOUNTING DEPTH: 6 1/2" DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 8” dual sealed solo baric sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 7 3/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 10” dual sealed sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 9 1/4" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. -MOUNTING DEPTH: 6 1/2" DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 10” dual sealed L7T sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 9 3/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 10” dual ported sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 9 1/4" -AIR VOLUME: 1.76 FT^3 -TUNING FREQUENCY: 36-Hz -1 SLOT PORT (DIMENSIONS: H-2 1/2” W-5 1/2” L-10”) -WEIGHT: 46 LBS. -MOUNTING DEPTH: 6 1/2" DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 10” dual sealed TW3 sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 9 5/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 12” dual sealed sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. -MOUNTING DEPTH: 6 1/2" DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 12” dual sealed L7T sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 12” dual ported sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -AIR VOLUME: 1.76 FT^3 -TUNING FREQUENCY: 36-Hz -1 SLOT PORT (DIMENSIONS: H-2 1/2” W-5 1/2” L-10”) -WEIGHT: 46 LBS. -MOUNTING DEPTH: 6 1/2" DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN FIRING ---------------------------------------------------------------------------------------------------- black 12” dual sealed TW3 sub box, fits 19-26 chevy silverado double & crew-cab SPECIFICATIONS: -CUTOUT DIAMETER: 11 5/8" -AIR VOLUME: 1.85 FT^3 -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.92 FT^3 -WEIGHT: 46 LBS. DIMENSIONS: -HEIGHT: 9 1/2” -LENGTH: 49 1/2" -DEPTH: 17" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -GLUE -2” STAPLES + MAINLY SEALED WITH HIGH QUALITY SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -DOWN 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