Automatically control water supply with pressure tanks and four-way components and pumps.Totally automatic control without manual operation. Pump pressure switch is suitable for self-priming pumps, jet pumps, garden pumps, water pumps, etc. When the system pipeline pressure reaches the upper limit , the power supply is automatically cut off and the pump stops working.And the lower limit, automatically switched on and the pump starts to work. Water flow regulator is made of high quality material, stable performance, low maintenance, low noise, long service life, good for environmental protection. We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time., Manufacturer: FTVOGUE