Water Temperature Control. No 25

Hi, This was an expensive piece of kit, when it was purchased new. It was used in photographic dark room; to regulate the hot and cold water coming form the fossets, to whatever temperature one required when wrensing prints etc during the process of coloured prints. Its capable of giving fairly precise temp during the water flow from both fossets, even when the temperature at sourse is constantly changing. No private numbers will be replied to. Thank you for reading.