Flared Port Tube 3" ID x 11" L with 5" Flared Ends - Premium quality flared port tube for high output woofer and subwoofer speaker designs. The carefully engineered flaring reduces turbulence when the port is driven to very high air velocities.
Reduces distortion-inducing turbulence
Maximizes low frequency output
Attractive, easy to install
Diameter and length are ideal for many of today's new woofers