Original plumbing trade vintage catalog for ZEOLITE CHEMICAL COMPANY, was located at 140 Cedar Street, New York City, NY. Manufacturers of Greensand Mineral, Water Softening Equipment. Hard water and its disadvantages in power plants, railroads, industries, residential, municipalities. Softening water, removing hardness. Unbound from a large 1931 architectural catalog, this unique old one page technical brochure would display beautifully matted and framed. A fantastic addition to your retro plumbing collection. Slight damp stain on outer edge.