1. Used for water pump
2. The pump automatically start and stop based on the set pressure.
3. Threaded interface:1/4"3/8" 1/2" female or rotative nut，1/4" male
4. A convenient dual-purpose wrench is provided, with one end for disassembling the cover and the other end for adjusting the main and auxiliary pressure spring nuts.
1. Cover
2. Threaded interface
3. Pressure setting
