LAB SlapBox™ 0.75 ft^3 Ported MDF Enclosure Box for Single Sundown Audio SA-8 Subwoofer
Source OEM Single 8 inch Subwoofer Box Design Custom 8 inch Subwoofer Boxes Subwoofer Truck Box Design for 8 inch on m.alibaba.com
BLACK 8" TRIPLE SEALED SUB BOX
Qpower Qbfordff09208 8 Inch Dual Port Subwoofer Enclosure Box With Underseat Down Fire For Ford F150 Super Crew And Ford F250 And 350 Super Duty : Target
Amazon.com: IMC Audio PPA8SS 8 Inch Car Speaker Box Enclosures - 8 Subwoofer Box for Great Sound Quality Home & Vehicle Car Speakers 8 Inch Speaker Terminal One 8" Sub Box - Charcoal : Electronics
QPower QBFORDFF09408 8 Inch Quad Port Subwoofer Box for Ford F150 and F250/350 - Walmart.com