LTWFITTING Brass 1/2" OD x 3/8" OD Flare Reducing Union,Brass Flare Tube Fitting(Pack of 5) Tube Size 1 :1/2" OD Tube size 2: 3/8" OD Type: Flare Reducing Union Materies: BRASS Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.