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Best Buy: Metra 12" Single Ported Subwoofer Enclosure for Most Trucks and SUVs Charcoal TCTSP-112
DS18 ENS-212TB Turbo Style Ported Subwoofer Enclosure 2 X 12”
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3 ft³ @ 35Hz Ported MDF Subwoofer Enclosure Box for Single 12" Car Audio Woofer | eBay
