Durable Material: Made of reusable ABS plastic, this well-designed switch is safe, durable, and practical for everyday use. Special Design: When the water tank is filled with water, turn off the booster pump to prevent damage. This high or low pressure switch serves as a reliable replacement for old or damaged units; order as needed. Widely Applicable: Compatible with reverse osmosis water systems, water purifiers, pure water machines, and water dispensers. Long Service Life: Features fast response to effectively protect equipment and ensure extended durability. Meaningful Tool: The high pressure switch remains normally closed until high pressure is reached, then opens to shut off the pump. The low pressure switch turns off the pump when water pressure drops below the operating level or in case of no water flow. Specification: Material: ABS Size: Approx. 12 x 9 x 8 cm (4.72 x 3.54 x 3.15 inches) Color: White Notes: Due to manual measurement, slight size variations may occur. Due to differences in monitor displays, the actual color may vary slightly from the image. Includes: 1 x Pressure Switch