Singapore

#2PCS #Speaker #Port #Tube #Bass #Reflex #Vent #Ventilation #Connector #2-3" #18x37mm #Subwoofer #Woofer #Box 
2PCS Speaker Port Tube Bass Reflex Vent Ventilation Connector 2-3" 18x37mm Subwoofer Woofer Box
100% brand new and high quality

Features:
High quality material with stable performance, practical and useful.
Features an external flare for reduced port turbulence and enhanced aesthetic appeal. 
Overlaps with the sound radiated from the front of the horn to produce a bass effect.
Light-weight and durable, easy to install. Ports are a press-fit style and can be trimmed to length if needed.
Perfect for tuning small 2-3" high-performance bookshelf or micro speakers. 
Speaker Tubes only, other accessories demo in the picture are not included!

Specification:
Material: Plastic
Type: Accessories
Color: Black
Opening Hole Diameter: 18mm/ 0.71in
Length: 37mm/ 1.47in
Front Outside Diameter: 22.0mm/ 0.87in
Front Inside Diameter: 15.5mm/ 0.61in
Tail Outside Diameter: 15.0mm/ 0.59in
Tail Inside Diameter: 13.0mm/ 0.51in
Quantity: 1 Set

Note:
1.No retail package.
2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you bid.
3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package includes:
2 Pcs x Speaker Tubes