for NW 200, with silt bucket made of galvanised steel, with FIBRETEC design slotted grating, SW 200/10 mm, in the colour black, class B 125, locked, 0,5 m
for NW 150, with silt bucket made of galvanised steel, with FIBRETEC design slotted grating, SW 150/9 mm, in the colour black, class B 125, locked, 0,5 m