Comparison : Item # STSE.375, 3/8 x 3/8" Thread Size and 90 Degree Standard Steel Street Elbow
Item # STSE.50, 1/2 x 1/2" Thread Size and 90 Degree Standard Steel Street Elbow
Item # STSE.75, 3/4 x 3/4" Thread Size and 90 Degree Standard Steel Street Elbow
Item # STSE1, 1 x 1" Thread Size and 90 Degree Standard Steel Street Elbow
Item # STSE1.25, 1-1/4 x 1-1/4" Thread Size and 90 Degree Standard Steel Street Elbow