Nippon Woofer Enclosure Port Tube: 4″ x 4-1/2″
4-1/2″” Mounting Depth Air Port Tube
4″ Width Provides excellent ventilation for speaker cabinets and enclosures
Ensures optimal airflow and Prevents Overheating
Cut to Adjust – Allows Custom Tuning of Enclosures
Black ABS Plastic Construction
Sold Individually