Product Information Male Thread: NPT Select a Product Part NumberMaterialColorMale Thread SizeHose Size HB150PolypropyleneBlack1-1/2"1-1/2" HB300PolypropyleneBlack3"3" HB200PolypropyleneBlack2"2" THN15NylonYellow1-1/4"1-1/4" THN25NylonYellow2"2" THN20NylonYellow1-1/2"1-1/2" THN35NylonYellow3"3" HB400PolypropyleneBlack4"4"