4 VXF-15 PRO (12cf 31Hz)DIY BOX PLAN 4 SKAR VXF-15 Designed to fit the back of full size SUVs VOLUME: 12cf netTUNING: 31HzPORT AREA: 180in^2(15in per cube)DIMENSIONSWidth: 48inDepth: 36inHeight: 24-1/4in$25.00PriceAdd to CartBuy Now