Product Information Female Thread: NPTF Male Thread: NPT Select a Product Part NumberMaterialFemale Thread SizeMale Thread SizeLength 3730402CLFAlloy C275401/8"1/4".75" 3731208CLFLead Free Brass1/2"3/4"1.00" 3730806CLFAlloy C275403/8"1/2"1.00" 3730804CLFAlloy C275401/4"1/2"1.00" 3730604CLFAlloy C275401/4"3/8".75"