1/8"-27 MNPT x 1/4" Female - This fits the larger 1/4" brake tubing, not the smaller 3/16" tubing. Fits adjustable prop valves, residual valves, brake switches. Popular uses: Universal Adjustable Proportioning Valve to Brake line Adapter Fitting, Residual Valve, Brake Switches (also many other uses) This fits the 1/4" brake tubing with a 7/16-24 tube nut fitting.
