Cerro is proud of our 80-year tradition of “Made in the USA” copper tube and pipe used in plumbing and mechanical systems. Cerro is recognized by Distributors, Retailers, Contractors, Engineers, and Owners as their preferred & trusted brand for quality, reliable copper and brass flow control products.  We aim to be the most market-driven, customer-focused, lowest cost-to-manufacture, and innovative provider of high-quality flow control products for the Plumbing, HVAC/R, and Industrial markets. Our value proposition includes providing best-in-class sales support product knowledge, creating demand by Plumbing and Mechanical Contractors, and building brand awareness with Engineering Specification Writers and Designers.  Cerro’s value proposition also includes providing our customers with competitive market, economic, product, and technology trends.


Cerro’s precursor was initially founded in 1908 as a scrap iron dealer. In the 1920’s Cerro innovated electrolysis as a process to refine pure grades of copper at our present location in East St Louis, IL USA.


early years cerro refining copper

In our early years in business, Cerro smelted brass ingots

Cerro smelted brass ingots

1939  – Cerro built our first copper tube mill

Cerro first copper tube mill

As the U.S. entered World War II,  Cerro made parts for projectiles, tube for cargo and combat ships and other war products.

Cerro participation in WWII

1975 – Marmon Holdings, Inc. (formerly known as The Marmon Motor Car Company; Winner of the first Indianapolis 500 in 1911 with the Marmon Wasp) acquired Cerro Copper Products Co.

1911 Marmon Wasp Marmon Motor Car Company winner

Marmon is an international association of more than 100 companies that operate independently within 11 diverse business groups.

1981 – Cerro opens Shelbina, Missouri plant for the production of precision, thin-wall copper tube for the OEM industrial market.

cerro flow plant copper products

1996 – One of the only continuous billet casting facilities in the U.S., Cerro Copper Casting opens in Mexico, Missouri.

cerro flow headquarters

2004 – Cerro Copper consolidates its operating companies under the name Cerro Flow Products LLC.  While maintaining our focus on a tradition of copper, Cerro is expanding with additional market driven products. The new structure is designed to ensure that customers receive industry-leading customer service and new innovations in flow product solutions.

2008 – Cerro celebrates 100 years of providing excellent service and solutions to its valued customers. Berkshire Hathaway Inc. purchased majority interest in Marmon.

cerro flow complex

2009 – Cerro opens a new facility in Vinita Park, Missouri, dedicated to the manufacturing line sets for the HVAC market.

Today – Cerro’s industry leading expertise as a manufacturer of copper tubing has enabled us to grow into a full-service company. In this role, Cerro Flow Products LLC is proud to offer the strength and reliability of a trusted name as we continue to expand into new flow control solutions.

We are Cerro Flow Products, LLC – the trusted brand for over 100 years.

Want to know more?

Contact Cerro Today!

Enter your information below, and we'll get in touch quickly!

"*" indicates required fields