BRAKEQUIP FITTING - FEMALE M12 X 1 - M20 X 1.5 (DPS)

Yeah, that's exactly what it's built for. One side threads onto M12 x 1, the other connects to M20 x 1.5, so it handles that size difference right in the middle of the assembly without needing anything extra. The female-to-female setup means both ends accept male threaded fittings, which is the typical arrangement in brake line assemblies where two lines or a line and a component come together at different thread sizes. It's a Brakequip fitting, part of their DPS series, so it's meant to slot into that system cleanly.

For connecting two different metric thread sizes in one brake or hydraulic line assembly, this fitting bridges a female M12 x 1 to a female M20 x 1.5, so it works as a transition between those two threads.