Review on Joyway Reducer Splicer Fitting Intersection by Jose Miller

This product works well for connecting 7/16" and 3/8" automotive fuel lines for oil separator installation. Fits very tight. These lines are used to allow exhaust and contaminants to flow from the PCV valve to the filter and do NOT carry fuel, so I can't confirm how well this fitting will withstand a pressurized fuel leak. However, the fit is so tight that I think it would work well with the obvious addition of some hose clamps.