Products
Zero Valent Iron
Connelly-GPM, Inc. takes pride in being the world’s largest manufacturer of Iron Aggregate (ZVI). We will custom grind to meet your specifications and needs.
Iron Sponge
Our Iron Sponge removes sulfur from natural gas, sewer gas, landfill gas, methane manufactured from biogas digesters, and a variety of other air and gas sources.
About Us
Connelly-GPM, Inc. manufactures the following products: Metallic and non-metallic building products for the industrial construction industry on a private-label basis only: Iron Sponge for the removal of hydrogen sulfide (H2S) from gases; Chemical Iron for reduction purposes for the chemical industry, and Iron Aggregate for groundwater remediation.
Founded in 1875, Connelly-GPM is now in the fourth generation of family ownership with Cindy Mann and Amy Krevit at the helm, making Connelly-GPM, Inc. a women-owned corporation for the first time.
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