Fuel pressure pulsation dampener
What it really is is a fuel pressure pulsation dampener. It is about 10" out from the pressure out side of the fuel pump and it is mounted in line. It helps keep the pulsation coming out of the pump from reading on your fuel pressure gauge.
Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell