
Cowles Operating Company
is a wholly owned subsidiary of C. Cowles & Company. We operate three divisions in a modern 220,000 square foot facility in North Haven, Connecticut: Carlin Combustion Technology, Hydrolevel Company, and Cowles Products.

Cowles Operating Company
is a wholly owned subsidiary of C. Cowles & Company. We operate three divisions in a modern 220,000 square foot facility in North Haven, Connecticut: Carlin Combustion Technology, Hydrolevel Company, and Cowles Products.

Burners, Controls, & Ignitors
Carlin is a leading manufacturer of biofuel, oil, natural gas and propane burners and associated controls for heating, domestic hot water, industrial and process applications.

Boiler Controls
Hydrolevel is a leading manufacturer of temperature and liquid level controls for residential and commercial heating and process applications.

Plastic Profile Extrusions
Cowles Products manufactures a wide variety of rigid and flexible extruded plastic products that are used in industries ranging from automotive to medical.