Manufactured from brass tubing designed for central heating or hot water circulating systems. Available in an output of 507 BTUs/hr. Also available in several finishes: Chrome, Nickel, Satin Nickel, Regal Brass, Satin Brass, Gold, Satin Gold, Baked epoxy powdercoat white finish or custom colors, conbination finishes also available. Matching valves and sleeving kit included.