4 Inch (4") cardboard turbo port
1 x 4 Inch plastic port flange and 400mm long cardboard tube
The length of the cardboard tube is easily customizable by simply using a knife or saw to trim the cardboard tube to the desired length Inside of the cardboard tube is painted black
Suitable for bass reflex enclosures
Size: 110mm x 400mm long (4.3 inch x 15.75 inch long)
Cutout diameter: 120mm
Pack size: Each
Packaging: Bulk