Caleffi Air Vents

MiniCal (float type, serviceable), RoboCal (float type, non-serviceable), ValCal (float type, high capacity) and HygroCal (hygroscopic coin type) series air vents by Caleffi for hot water and steam heating applications, including boilers, furnaces, manifolds, radiators (cast iron and steel panel) and many other applications.
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