Overview Reviews Product Description The 1/4" ball foot chuck comes complete with a 1/4" female pipe (NPT) inlet. Greenline Industrial Fitting Catalog New Greenline Industrial Fitting Catalog Product Videos Product Reviews Write a Review Write a Review × Greenline 1/4" FNPT Single Face Air Chuck 104 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *