This Device is for Airplane Modelers that have their Engines
and Fuel Lines in "hard to get at" Places such as Cowlings.
One Pre-Assembled Fueling Valve (Gas Fuel or Smoke Oil)
One Fueling Probe (DUBP2339)
One Knurled Nut w/Serrated Washer
One-Piece Valve Assembly installed into Airplane with
Convenient Fueling Probe for Refueling.
Overall length (front to back): 13/16" (20mm)
Mounting nut diameter (what is seen on outside of cowl): 1/4"
Hole size (drilled through cowl): 3/8"
Length inside cowling: 1/2"