Filter Filters $100-$500 Subwoofer Boxes Remove All Filters Condition New (7) Used (1) Size 10" (2) 12" (1) 15" (1) Receiver Size Yes 10-7-2015 (4) Car Audio Dual 10" SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure $109.95 (2) Car Audio Dual 15" SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure $179.95 Car Audio Dual 12" SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure $129.95 (1) Car Audio Dual 15" SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure... $151.96 2004-2013 Ford F550 Super Duty Crew Cab Truck Custom Dual 12" Subwoofer... $139.95 2004-2013 Ford F450 Super Duty Crew Cab Truck Custom Dual 12" Subwoofer... $139.95 2007-2013 GMC Sierra Crew Cab Truck Custom Dual 10" Sub Subwoofer Enclosure Box $129.95 Fits GMC Sierra 14-UP Double Cab Dual 12" Sub Box Enclosure - Rhino Coated $169.95