Filters Clear All Recent These platforms at a wastewater treatment plant were installed for personnel to safely perform maintenance. This APEX OSHA step and catwalk was used for product testing at a leading robotics manufacturer. The Upside APEX Stair system was used for A/C maintenance at this modular complex at the Department of Veterans Affairs. The above Installed OSHA Grip Strut OMNI Stairs and catwalk run have been installed to hold units at an electric power facility.