Feature: 1. Low Water Pressure Start: The pump flow switch reset spring is made of excellent stainless steel to open the pump with low water pressure. 2. Excellent Stability: The pump automatic switch is designed so that the induction chamber, magnetic control chamber and electronic component chamber are separated to avoid the adsorption of iron containing materials in the pipeline by magnetic materials, which may cause the switch to malfunction. 3. High Temperature Resistance: Flow switch for shower booster pump with high temperature resistant materials, so that the product can be used in both hot and cold water conditions. 4. Good Safety: Electronic components are used as control devices, so that the product is spark free and fully enclosed in the process of use. 5. Wide Range of Uses: Suitable for low water pressure areas of household tap water booster, court hot water circulation, solar circulation system, hot water system, floor heating, boiler, water supply pressure boost, pond or fish tank water circulation, air conditioning, etc. Specification: Item Type: Water pump automatic switch Model: HT200 Material: ABS and Brass Specifications: Universal adjustable type (G3/4 to G3/4) Inner Diameter: Approx.25mm / 0.98in Outer Diameter: Approx.25mm / 0.98in Rated Current: 2A Power: 150w Scope of Application: Booster pump supporting automatic start or stop. Package List: 1 x Pressure Switch2 x Rubber Rings