4" (10 cm) bass port kit with two conical ports and a 40 cm black plastic tube to be cut to desired length. Inner diameter 103 mm. Art.no.- Description 10-45110- Complete kit 9-45110- Large port 110 mm 9-45111- Small port 110 mm 9-45112- Sep. tube 110 mm, 40 cm 9-45112A- Sep. tube 110 mm, 60 cm
