Merit Brass NLBS114-0402-10 Lead Free Pipe Fitting, Hex Bushing, 1/4" x 1/8" (Pack of 10) Hex bushing for connecting pipes of different sizes Male and female National Pipe Taper (NPT) threads for connecting two pipes Made from lead-free brass for higher corrosion resistance than steel Relative softness of metal enables tighter seals and greater ease in installation Manufactured to standards NSF/ANSI 61, AB1953, and S.152 for lead-free quality assurance