DUB334  Du-Bro Kwik-Fill Fuel Valve 

Du-Bro Kwik-Fill Fuel Valve DUB334 This Device is for Scale Helicopters that have their Engines and Fuel Lines in "hard to get at" Places. INCLUDES:
One Pre-Assembled Fueling Valve (Glow Fuel)
One Fueling Probe (DUBP2339)
One Knurled Nut w/Serrated Washer

SPECS:
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"

COMMENTS: Will require drilling 3/8" hole for acceptance of valve assembly.