Storm water inlets of three types:

Heavy duty storm water inlet D400
Parameters:
Length - 910 mm
Width - 570 mm
Weight - 120 kg
Height - 120 mm
Classes of loading - D400
Material - cast iron SCH20

Storm water inlet main C250
Parameters:
Length - 900 mm
Width - 565 mm
Weight - 90 kg
Height - 120 mm
Classes of loading - C250
Material - cast iron SCH20

Storm water inlet big B125
Parameters:
Length - 895 mm
Width - 570 mm
Weight - 67 kg
Height - 80 mm
Classes of loading - B125
Material - cast iron SCH20

The model will throw the Turbosmooth modifier with two iterations.
Cases and grilles are in different layers.
2 options of materials (gray and black cast iron).
The archive contains a folder with textures, a file in the format max15 and fbx.