THE IRON AGGREGATE PEOPLE™
ESTABLISHED 1875
A WOMAN OWNED BUSINESS
Our Services
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
Removes sulfur from natural gas, sewer gas, landfill gas, methane manufactured from biogas digesters, and a variety of other air and gas sources.
Building Products
Building products suppliers depend on Connelly-GPM, Inc. to provide the highest quality private-label grouts, floor hardeners, and colored floor hardeners.
About Us
Established 1875
CONNELLY was founded in 1875, known as the CONNELLY IRON SPONGE & GOVERNOR COMPANY. In 1946, when they divested themselves of the Governor business, the Company name was changed to CONNELLY, INC. The primary business of the Company was to manufacture IRON SPONGE for the removal of hydrogen sulfide from illuminating gas and other gases.
GAS PURIFYING MATERIALS COMPANY, INC., was founded in 1919 and until 1958 manufactured an IRON SPONGE material, known as GPM IRON HYDROXIDE.
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