3/8" Female Compression x 3/8" Male Compression x 1/4" Male Compression, Brass Supply Stop Extender Tee, Swivel Screw On Hook Up, Creates A Branch Outlet From A Supply Stop, For Use With Hot Or Cold Water To Connect Icemakers, Dishwashers, Water Filters Or Other Accessories Which Require 1/4" Outer Diameter Or 3/8" Outer Diameter Water Supply, Lead Free.