These 3/8" brass hose barb fitting adaptors directly replace your OEM brass fittings in the sides of your Mercury WH, WMV, and WMH carburetor fuel ports.
 
They increase the straight-through fuel flow lines from 5/16" to 3/8" for high-performance and racing applications.
 
The clamp-style hose barb fitting is perfect for this low-pressure application as it allows a range of fuel lines and hoses to be easily removed and reinstalled without damage for outboard tuners and racers who often remove/rebuild carbs.
 
Includes one (1) 3/8" Brass Hose Barb Fitting that fits directly to OEM Mercury NPT / MPT Float Bowl. 
 
Contact Mike Hill at STVracer@yahoo.com