There are 5 products.
DIMENSIONS: Length of the box - 250 - 600mm (every 50 mm)
Diameter of the box - 110/120/130/140/150/160 mm
Diameter of the inlet and inner pipe - 50/54/57/60/63,5/70/76 mm
The product is also available with an embossing inside to improve damping.
The embossing occurs from the 300 mm and longer versions.