Pex Pipe Fitting, Insert Tee, 3/4 x 1/2 x 3/4-In., 10-Pk.10 pack, 3 4" x 1 2" x 3 4", lead free brass barb insert tee, to make a 3 4" branch from a 3 4" & 1 2" run of cross link polyethylene pex tubing, secure the 1 2" barb end of fitting to 1 2" pex pipe with tv #608 933 cinch clamps & tv #608 743 cinch tool, or copper crimp rings & crimp tool, secure 3 4" barb ends of fitting to 3 4" pex pipe with tv #608 826 cinch clamps & tv #608 743 cinch tool, or copper crimp rings & crimp tool, immediately testable