The filter service indicator gauge is a low pressure, return line oil gauge designed to show when a system needs service (operating normally, will need service soon or filter and fluid need serviced or replaced). The 1/8 inch back center mount fit, return line filter head contains castings with a 1/8 inch female national pipe thread gauge port.
Made of steel
2 inch 0-25 PSI filter indicator gauge
Fits return line filter head castings with a 1/8 inch FNPT gauge port
