Rockford Fosgate R2SD4-12 12" 1000W 4-Ohm Shallow/Slim Car Subwoofer Sub Pair with Mica-Injected Polypropylene Cone and Integrated PVC Trim Ring : Electronics - Amazon.com
XL-1240TD 12" DVC Shallow Mount Subwoofer
Ford F250 & F350 Crew Cab 12" Triple Sealed Shallow Sub Box Subwoofer Enclosure | eBay
Kicker L7T12 High-Performance 12-inch Shallow Mount Square Subwoofer – Sounds Good Stereo Online
JL Audio 12TW3-D4 - 12-inch Shallow Mount Subwoofer
JBL Club WS1200 Club Series 12" shallow-mount component subwoofer with 2- or 4-ohm selectable impedance at Crutchfield
Amazon.com: DS18 SB12A 12 Inches Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in
Sundown Audio SML-Series 12" 500W Shallow Mount Car Audio Subwoofer/Su - Showtime Electronics
Kicker 43CVT124 CompVT 12 inch Shallow Mount Subwoofer - Single 4 Ohm