Milton, 1/4" MNPT M-Style Swivel Hose Fitting Variable angle steel swivel 1/4" MNPT x M-Style plug; plug rotates 360 degrees at a 45 degree angle in any direction, virtually eliminating hose twisting and kinking. Rubber dust cover keeps dirt and moisture out. Fitting has a 1/4" basic flow size and air flow of 40 SCFM.