Amazon.com: 12 inch Vented Square Unloaded Subwoofer Enclosure : Electronics
Amazon.com: Custom Ported/Vented Sub Box Subwoofer Enclosure for 1 12" Sub Subwoofer - 32 Hz - 3" Aeroports - 3.0 CU FT - Reinforced : Electronics
Amazon.com: Atrend 12SQKV 12” Single Vented Subwoofer/Speaker Enclosure Subwoofer Box Designed and Engineered for Kicker Solo-Baric Model L5 & L7 Subwoofers Using The Latest in Computer Auto Design Technology : Electronics