Product Information Material: Brass Thread: NPTF Select a Product Part NumberThread SizeBody SizeLengthFlow 1AF1-B1/8"1/8"1.68"7 CFM at 100 PSI 2AF1-B1/8"1/4"2.41" 2AF2-B1/4"1/4"2.70"25 CFM at 100 PSI