Water intake (storm) gratings:

RV - 10.13.6.50:
Weight - 2.10 kg
Hydraulic Section - DN100
Material - Cast Iron
Size - 500x136x13 mm
Load class - A15, B125, C250

RV - 10.13.7.50:
Weight - 2.80 kg
Hydraulic Section - DN100
Material - Cast Iron
Size - 500x137x12 mm
Load class - A15, B125, C250

RV - 20.23.6.50:
Weight - 6.00 kg
Hydraulic Section - DN200
Material - Cast Iron
Size - 500x236x17 mm
Load class - A15, B125, C250

Models without Turbosmooth modifier.
All grids are in a separate layer.
2 options of materials (cast iron and galvanized steel).
The archive contains a folder with textures and materials, files in the format max15 and fbx.