Amazon.com: Pyle Slim Subwoofer Box System - 600 Watts, Perfect for Mount Car Truck Audio Powered Subwoofer Enclosure, High Powered 12-inch Woofers with a Non-Pressed Paper Cone - PSBS12,Black : Electronics
Amazon.com: Rockville RDSM12 Dual 12" Shallow Mount 0.56 Cu Ft Car Sub Enclosure Box : Electronics
Ford F250 & F350 Crew Cab 12" Triple Sealed Shallow Sub Box Subwoofer Enclosure | eBay
Alphasonik Dynamis DCP6 | Alphasonik
12PST - 12" Shallow Mount Truck Sealed – Atrend USA