A fairing that goes onto the fuel drain to smooth the airflow and eliminate vibration at the valve stem than can lead to premature o-ring failure.  You get one for the right side and one for the left side. To instal, turn set screw ¼ turn after contact, no lock-tight required. If you choose to lock-tight use VC-3 which is approved for plastic.
 
Fairing cracking was discovered after 3 years of exposure to a weeping fuel sump for an ABS fairing.  The material for these fairings has been changed to PET-G plastic to prevent cracking of the fairing from fuel embrittlement.