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Get more bass out of your subwoofer by adding a port to your box! Find subwoofer port boxes designed to make your subs sound louder – Get your now.
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Discontinued Box Ports

4" x 6" Molded Sub Enclosure Aero Port

4" x 6 Molded Enclosure Port • Port Diameter: 4" • Port length: 6" • Material: ABS Plastic • Suitable for 12" - 18" subwoofer enclosures