• Armor Coated With High Pressure Polyurethane Bed Liner Material
• Increases The Base up to three times , stiffens the wood and no air leaks
• Life Time Guaranty
• Single  8, 10 or 12 inch subwoofers
• Seat must be removed to mount box to cab wall
• Air Space = .69 cubic feet per sub 
• Mounting Depth 4.25''
• Speaker terminals included  
• 5/8 M.D.F
• Made in the U.S.A