N Scale Membrane Water Filter Unit Material:Clear Ultra Fine Detail Plastic This style of stairs is

This style of stairs is available in the follwing heights:

to allow trains to pass underneath but also appear to be in the loading process when a tank car is spotted below the bridge

you could add a transparent material or a wall cladding type material in 4 pieces:

width of steps 2x10mm

length of boom from center of column to the tip is 109mm

N Scale Membrane Water Filter Unit Material:Clear Ultra Fine Detail Plastic This style of stairs isWater purification filter with membrane tubes in N scale. This kind of installation is used in factories to provide very clean water the production process. The membranes are cleaned periodically by backwashing.