This Pressure Ratio Indicator, model MPN JG298A5, is a reliable and serviceable aviation accessory. Its brand, Honeywell, ensures quality and durability. The indicator is designed to provide accurate pressure readings, making it an essential tool for aviation enthusiasts and professionals alike. Its part number, JG298A5, and service number, R-254, provide additional information for identification and compatibility. This item is perfect for those looking to enhance their aviation experience and achieve greater situational awareness.