4x8'' Double Ported Subwoofer Box

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Armor Coated With High Pressure Polyurethane Bed Liner MaterialIncreases The Base up to four times stiffens the wood and no air leaksMade in the U.S.AFits Most Hatch Back and Trunk s4-8'' Speakers each two with two port systems.Air Volume 1.67 Cubic Feet Per sides (Two Woofers share the same chamber )Port Volume .08 Cubic Feet for two portsMounting depth 12''Dimensions: 39" x 11" x 13" Show more