There are 2 types water flow sensors for this auction. One is G1/2'' ,another is G3/8'' .
Pls select it carefully before you place an order.
Type : G1/2''
G1/2'' Liquid Fuel Oil Flow Meter Counter Diesel Gasoline Gear Flow Sensor with Scew Connector
Type : G3/8''
G3/8'' Liquid Fuel Oil Flow Meter Counter Diesel Gasoline Gear Flow Sensor