Jones Stephens Brass Compression Union, Lead FreeModelsC74023LF: 1/4" - 1/4 OD Comp Union Lead FreeC74025LF: 3/8" - 3/8 OD Comp Union Lead FreeC74026LF: 1/2" - 1/2 OD Comp Union Lead FreeC74027LF: 5/8" - 5/8 OD Comp Union Lead FreeC74029LF: 7/8" - 7/8 OD C