Overview Reviews Product Description PARKER HANNIFIN BRASS 211P-2 Square-head Plug CATEGORY: INDUSTRIAL PIPE FITTING ADAPTER. Product Videos Custom Field Product Reviews Write a Review Write a Review × Parker Parker 211P-2 1/8" Npt Brass Square Head Plug Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *