ITEM NAME:1PCS 42x80mm Subwoofer Woofer Speaker Port Tube Bass Reflex Tube Speaker Ven BX Description 1PCS 42x80mm Subwoofer Woofer Speaker Port Tube Bass Reflex Tube Speaker Vent Specification: We suggest opening speaker vent hole after receiving speaker port tube! Material: ABS Opening Hole Diameter: 42mm Length: about 80mm Flange Outside Diameter: 61mm Flange Inside Diameter: 36mm Error: Â ±5% Package Included: Speaker tube x 1.We suggest opening speaker vent hole after receiving speaker port tube! Speaker tube x 1. Error: Â ±5%.
