Topeka Engineers Manufacturing 423 S. Main St. Rich Specialty Trailers manufacturers custom and special trailers for on site use. Trailers include restrooms, showers, bunk houses, oil field trailers, housing trailers, decontamination trailers, command trailers, and actor trailers. Standard floorplans or design your own floorplan. Topeka IN Engineers Manufacturing Rich Specialty Trailers www.richrestrooms.com restroom trailers decon trailers shower trailers emergency response trailers command trailers restroom trailers decon trailers shower trailers emergency response trailers command trailers Business Reviews Rich Specialty Trailers Testimonials