Rockville RDSM12 Dual 12" Shallow Mount 0.56 Cu Ft Car Sub Enclosure Box Rockville RDSM12 Dual 12" Shallow Mount Sealed Subwoofer Enclosure Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs! 5/8" USA Heavy Duty MDF Construction Machine precision cut mounting holes. Top of the line Glue for extra durable adhesion Designed, tested, and engineered to work with most of todays popular woofers. These enclosures are built with the quality additives needed to maximize the performance of any sound system. Rockville RDSM12 Dual 12&#034; Shallow Mount Sealed Subwoofer Enclosure Proudly Made In The USA, Using Only The Finest Quality Materials - For The Best Level of Performance From Your Subs! 5/8&#034; USA Heavy Duty MDF Construction Machine precision cut mounting holes Top of the line Glue for extra durable adhesion Designed, tested, and engineered to work with most of todays popular woofers. These enclosures are built with the quality additives needed to maximize the performance of any sound system. Type of Enclosure: Sealed Shallow Mount Enclosure Sub Size: Dual 12&#034; Dimensions in Inches: 5.25&#034; L x 36&#034; W x 14.25 H&#034; Top and Bottom Depth: 5.25&#034; Mounting Depth: up to 4.625&#034; (enough depth for any sub on the market) Gross Volume Per Sub (Measurement for the outer dimensions of the box): 0.77 Cubic Feet Net Volume Per Sub (Measurement for the outer dimensions of the box less the thickness of the wood): 0.56 Cubic Feet