Keystone Filter is a leading provider of filtration solutions, offering a wide variety of technologies that are adaptable and scalable for a broad range of filtration and purification applications. Markets served include medical, pharmaceutical, nuclear, aircraft, process chemicals, commercial printing and various water markets ranging from home drinking water filters to commercial and industrial water treatment systems.


Keystone Filter is also one of the premier cartridge filter manufacturers in the United States, offering standard and custom designs that utilize state-of-the-art filtration media technology.


Keystone Filter is a leading manufacturer of residential drinking water filters and filtration systems. We offer a complete line of standard filters, GIANT® filters and whole house filters plus water filter replacement cartridges, parts and accessories.

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CECO Environmental Completes Acquisition of Met-Pro Corporation - Creates the Global Leader in Air Pollution Control, Product Recovery and Fluid Handling Technology

August 27, 2013

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