Feature

●Package includes: 2 x Black Speaker Pilot Hole Outlet; Material: ABS
●Size: 4" long, 2" diameter opening. Used to install 3-inch loudspeaker
●For improved speaker cabinet, portable speaker, home speaker or car speaker
●Add a very nice "bass reflex" effect to the built-in box in the speaker box. Very suitable for subwoofer housing, speaker projects
●4-inch subwoofer subwoofer port connector tube inverter speaker vent: light weight, easy to install and use


Description

Specification:
Type: Speaker Pilot Hole Outlet
Diameter: 68mm
Height: 120mm
Hole diameter: 50mm
Material: ABS
Color: Black
Package includes: 2 x Black Speaker Pilot Hole Outlet
Light weight, easy to install and use.
Can replace the old speaker tube.
Improve the sound quality of the speaker.
Suitable for 4-inch speaker.