What is the K-Factor of the FT-90 or FT-180 Fuel Flow Sensors?

What is the K-Factor of the FT-90 or FT-180 Fuel Flow Sensors?

The K-Factor of all FT-90 Gold Cube and FT-180 Black Cube Fuel Flow transducers is the same:



(Note: MGL Avionics uses Liters K-factors for flow sensors)