Radio control airplanes, SUPERTIGRE, fuel nipple for carburetor and muffler

The Fuel Nipple (Pressure Fitting) Screws Into the Muffler, and         
Provides a Place to Connect Fuel Tubing Onto the Muffler.  The Fuel Tubing Will
Then Run Back to the Fuel Tank.  This Setup Will Cause the Fuel Tank to Become 
Pressurized, Which Helps To Keep A Constant Flow of Fuel to the Engine.        
                                                                               
INCLUDES: One Fuel Nipple (Pressure Fitting)                                   
          One Red Washer                                                       
                                                                               
REQUIRES: MUFFLER                                                              
                                                                               
SPECS:    Length:14.14mm (.557")                                               
          Thread Pitch: .5mm, 3mm diameter                                     
          Inside Hole Diameter: 1.40mm (.055")                                 
          Fuel Tubing Size: USE A TUBING WITH 3/32" INSIDE DIAMETER.