Everflow BRFL0012-NL 1/2-Inch Brass 45-Degree Elbow with Female National Pipe Taper Threads, Lead Free Brass Pipe Fitting, Durable, Higher Corrosion Resistance, Economical & Easy to Install 45-Degree Elbow for Changing Flow Direction Brass Body Constructed Manufactured to Standard ASTM B-584-06 for Lead-Free Quality Assurance Brass Finished Plumbing Fitting, Made from Premium Materials, This Plumbing Fitting Offers Great Function and Value for your Home National Pipe Taper (NPT) Threads for Creating Tighter Seals Than Straight Threads; Certified to Meet NSF/ANSI 61-8 Standard for Quality Assurance