Overview Reviews Product Description Straight Black Pipe Adapter - NPT Male -16 Threads (4 Inch Length) Product Videos Custom Field UOM EA Product Reviews Write a Review Write a Review × BLACK PIPE NIPPLE LONG 4 inch 1 NPT Male Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *