Features:

• Rockville Dual 12" Sub Enclosure Box 07-13 GMC/Chevy Sierra/Silverado Crew Cabs
• 2hole 12" for GMC/Chevy 2007-2013 Crew Cab
  
• Underseat Downfire
  
• Finished with Durable Bed Liner
  
• 2007-2013 GMC/Chevy Crew Cab, Does NOT fit Xcab
• Mounting Depth: 5” (inches)
• Mounting diameter (hole size): 11” (inches)
• Wood thickness: 5/8” (inch)
• Air space: 0.9 Cubic feet
• Material: Highest-grade MDF wood on the market