Metra, Truconnex TCPSP-212 sub enclosure 12", 2x12” Brand New | eBay
SPL Boxes SB362-212-BL Custom-fit dual 12" sealed subwoofer enclosure — fits 2009-up Ford F150 SuperCrew and 2017-up F250/350/450/550 SuperCrew trucks at Crutchfield
Amazon.com: QPower QBOMB12V Dual 12 Inch Subwoofer Box with Bedliner Spray for Speakers, High-Performance Vented Subwoofer, Durable Sub Box, Black : Electronics
Concept Enclosures - Custom Ported Sub Enclosure for 2 12" Subs
the box Pyrit 212 Sub A – Thomann United States
Amazon.com: Bbox Dual Sealed 12 Inch Subwoofer Enclosure - Pro Audio Tuned Dual Sealed Car Subwoofer Boxes & Enclosures - Premium Subwoofer Box Improves Audio Quality, Sound & Bass - Spring Terminals : Everything Else
Concept Enclosures - Custom Ported Sub Enclosure for 2 12" Subs