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About Caleffi

If you need a component for a radiant heating or domestic hot water system, chances are Caleffi makes it. From the smallest fitting to industrial manifolds weighing hundreds of pounds, Caleffi has a solution for everything hydronic. For over half of a century, Caleffi has been refining their products and developing new ones and it has resulted in one of the most complete catalogs in the industry. Zoning, venting, separating, mixing, balancing, you name it and Caleffi can help you do it. If you want a more effective, more reliable hydronic system, it starts with a Caleffi product.

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