Milton 1102 1 2" NPT Deluxe Polycarbonate FRL Trio 8′ Black Rubber Hose These oil control handles are 912 19 These oil control handles are extremely durable and use 1 standard AA battery for the easy to read LCD display quality gears and stainless steel shafts eliminate the need of calibration to adjust for fluid viscosity 1 2" NPT Deluxe Polycarbonate FRL Trio1 2" national pipe threadMaximum of 250 pounds per square inchMaximum of 100 standard cubic feet per minuteOperating temperature range of 40 degrees Fahrenheit to 150 degrees FahrenheitAll Milton® FRL components are 100% tested before leaving the factory 1 2" NPT Deluxe FRL trio is a filter