This high-quality port tube features a gold trim ring for enhanced aesthetic appeal. Perfect for tuning small high-performance bookshelf or stand mount speakers. These ports are also popular for use as a sleeve in pass through holes for wire and cable in counters, cabinets, and walls. Ports are a press-fit style and can be trimmed to length if needed. Requires 2.9" opening.
Note: These ports do have a slight taper, see dimensions below.
Overall port length (including flange): 135 mm (5.3")
Overall front diameter (across flange): 94.5 mm (3.72")
Front inner diameter: 69 mm (2.7")
Rear inner diameter: 67 mm (2.65")
Effective port length: 135mm (5.3")
Mounting hole diameter: 73 mm (2.9")