Comparison : Item # SFGJ025H, 1/4 Inch (in) Size Plated Iron Ground Joint Hose Stem
Item # SFGJ038H, 3/8 Inch (in) Size Plated Iron Ground Joint Hose Stem
Item # SFGJ050H, 1/2 Inch (in) Size Plated Iron Ground Joint Hose Stem
Item # SFGJ050075H, 1/2 to 3/4 Inch (in) Size Plated Iron Ground Joint Hose Stem
Item # SFGJ075H, 3/4 Inch (in) Size Plated Iron Ground Joint Hose Stem