2Pcs 76mm x 89mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box Port Tube Vent Floats Fit Hose Inner Dia:

Fit Hose Inner Dia:

for Ram 3500 2013-2015

The TiSin composite coating greatly improve hardness

mostly used in homes

so the felt won't come off when using it

2Pcs 76mm x 89mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box Port Tube Vent Floats Fit Hose Inner Dia: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