Driven by innovation and built on decades of engineering expertise, Harmsco designs high-performance industrial filtration systems trusted across industries worldwide.
Founded in 1958 in West Palm Beach, Florida, Harmsco began with a simple mission: to engineer better, longer-lasting filters. From hand-crafted stainless-steel pool filters to advanced industrial filtration solutions, the Harmsco name has become synonymous with quality, durability, and performance in liquid filtration technology.
John F. Harms pioneered the first pleated polyester filter cartridges—an industry-changing advancement that continues to define Harmsco’s superior filtration efficiency and cost savings. Under the leadership of Harold “Hank” Harms II, the company expanded into commercial, industrial, and municipal water treatment markets, introducing the acclaimed Hurricane® XP filtration systems and municipal water treatment markets, addressing the LT2 compliance rule, and GWUDI (Ground water under direct influence). Harmsco also prides itself in the fact that we have the largest offering and selection of cartridges and media, specifically designed to resolve the many challenges normally faced by the water treatment industry. Whether it is a potable drinking water facility, wastewater, or a myriad of industrial applications, Harmsco will assist with technical support and provide solutions to a substantial number of applications around the world.
Strategically partnered with its distribution network in the US and around the world, the company stands ready to meet any challenge, anywhere.
Now led by the third generation, Harmsco remains a family-owned American manufacturer dedicated to engineering excellence, reliability, and customer satisfaction. With state-of-the-art manufacturing facilities in Florida and a global distribution network, Harmsco continues to develop innovative filtration technologies that meet the toughest water quality and liquid process challenges—delivering cleaner, safer, and more efficient results for industries everywhere.

For further information, please visit our website – www.harmsco.com
or contact us at sales@harmsco.com
or 800.327.3248