Caleffi model 5350 is a self acting bronze pressure reducing valve suitable for water. It can be set prior to installation as it has an adjustment knob with a pressure setting indicator. It is available in ½” → 2″ and the main materials are DR brass body, NBR diaphragm and seat. A ¼” gauge port is standard and allows a pressure gauge to be fitted directly to the valve. Male unions are supplied as standard.