Double Ported 3x12" Poly

Armor Coated With High Pressure Polyurethane Bed Liner Material
Increases The Base up to four times stiffens the wood and no air leaks
Fits Most Hatch Back and Trunks
3-12'' Speakers each with two port system
Air Volume 2. 09Cubic Feet Per sides (separated chambers)
Port Volume .14 Cubic Feet
Mounting depth 19''
Dimensions 39.75''Wx22.75" Deep x 15.5" H