Easy to Use: Lightweight, reasonable size, stable performance, low starting pressure, easy to install, safe to use. Rabbit Feeder Feeder . Three-wire connection: Red for positive pole, black for negative pole, yellow for pulse signal. Hall Sensor: There is a built-in Hall sensor that outputs an electrical pulse with each revolution. The Hall sensor is sealed from the water pipe and allows the sensor to stay safe and dry. Please confirm if each size meets your needs Wide Use: Can be perfectly used for water heaters, water dispensers, water dispensers, coffee machines, flow measuring devices, water control machines, etc. High Quality: Made of high quality copper material, environmentally friendly, really sturdy and durable to use, its maximum water pressure is 1.75MPa, the flow range is from 2L/min to 45L/min. Condition: Brand New. Material: Copper. Color: As the picture shown. Type: G3/4 (Outer Thread Diameter). Water Quality Requirement: 60 . Starting Flow Range: 1.5L/min. Flow Range: