2 Pack, 1/4" MNPT x 1/4" NPS Hex Nipple Hose Fitting, 1/4" MNPT Hex Nipples Are Brass Hose Fittings That Are Used To Assemble New Hoses Or Replace Old Fittings On Hoses, 1/4" Male NPT x 1/4" NPS Ball Socket, Includes: 1/4" Male National Pipe Thread One End & 1/4" National Pipe Straight Other End.