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2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Rhino Coated Sub Box Enclosure New | RL-SUB-PACK145
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JL Audio Stealthbox® Custom-fit fiberglass enclosure with two 12" W3v3 subwoofers Fits 2002-up Chevrolet Avalanche / Cadillac Escalade EXT models at Crutchfield
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Amazon.com: Compatible with Chevy Avalanche or Cadillac Escalade EXT 2002-2013 Dual 12" Subwoofer Behind Seat Sub Box Speaker Enclosure : Electronics
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