Originally got an FPR Ultra-Flex nib for "fancy writing" situations, but I discovered I like it even better for daily note-taking. Such a fun nib to use! : r/fountainpens
Fenster Panzerriegel FPR 217
PR217 FUEL PRESSURE REGULATOR FPR FOR GM VEHICLES Chevrolet 4.3L 4.8L 5.3L 6.0L