2Pcs 76mm x 89mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box Port Tube Vent Floats Inner Diameter x Outer Diameter:

Inner Diameter x Outer Diameter: 12 x 16 mm

Model : SH40+PH40

Fit Hose Inner Dia:

Fit for: for Chevrolet Impala 2013-2019

for VW Golf R 2012-2017

2Pcs 76mm x 89mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box Port Tube Vent Floats Inner Diameter x Outer Diameter:Features: Speaker Port Tube is used to improve the bass response of many types of speakers. There are plenty of types to help you with your vented box design, and carries tubes of every shape and size, including adjustable length ports and flared ports. These port tubes are a reliable, convenient installation, while at the same time providing a finished, "pro" look to your bass reflex speaker building project. Normal tubes suffer from nasty turbulence