GS-GMP28B black 8" dual ported sub box, fits 14-18 gmc sierra crew-cab

SPECIFICATIONS:

-CUTOUT DIAMETER: 7 1/8"

-AIR VOLUME: 1.38 FT^3

-TUNING FREQUENCY: 35-Hz

-1 SLOT PORT (DIMENSIONS: H-2” W-4” L-10”)

-WEIGHT: 44 LBS.

-MOUNTING DEPTH: 6 1/2"

DIMENSIONS:

-HEIGHT: 8”

-LENGTH: 49 1/2"

-DEPTH: 16"

CONSTRUCTION:

-5/8" HIGH QUALITY MDF WOOD

-CARPETED WITH DURABLE TRUNK LINER FINISH

-SEALED WITH HIGH QUALITY TITEBOND SILICONE

-GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE

-2 BINDING POST TERMINALS

INSTALLATION:

-FITS UNDER REAR SEAT

-DOWN FIRING