Double-tube pressure regulator with huge-flow and scour-back The pressure regulator is of high performance and enables enough water supply. PVC indicating tube is made of transparent and high tenacity
plastic so it is easy to observe the water level. Advantage design makes disassemble much more convenient. Dual water input structure deletes scour-back bonnet and reduces malfunction. Dual water input optimizes scour-back and is popular with modern
raising.