Strong Compatibility: The diaphragm pump pressure switch is designed for 42 series pumps, ensuring smooth and stable performance for professional use. Premium Material: Made of high-grade plastic, oxidation resistant and wear resistant, not easy to crack, suitable for various environments, extending the pressure switch's lifespan. Precise Pressure Control: The high-precision pressure switch enables automatic on-off operations, effectively avoiding overpressure or under-pressure situations, ensuring equipment safety. Versatile Application: Widely used in toilet sewage pumps and other applications, meeting the needs of different users, enhancing equipment applicability and versatility. Easy Installation: Designed for quick and straightforward installation, minimizing downtime and maintenance costs, saving time and effort without complicated steps. Item Type: Diaphragm Pump Pressure Switch Material: Plastic Fitment: Replacement for 42 Series Pumps Package Includes: 1 x Pressure Switch Set (7PCS)