Comparison : Item # 209A-2A, 1/8 Inch (in) Hole Inner Diameter and 1/8 Inch (in) Pipe Thread size Brass Female Hose Ridged End x NPT Shank
Item # 209A-3A, 3/16 Inch (in) Hole Inner Diameter and 1/8 Inch (in) Pipe Thread size Brass Female Hose Ridged End x NPT Shank
Item # 209A-3B, 3/16 Inch (in) Hole Inner Diameter and 1/4 Inch (in) Pipe Thread size Brass Female Hose Ridged End x NPT Shank
Item # 209A-4A, 1/4 Inch (in) Hole Inner Diameter and 1/8 Inch (in) Pipe Thread size Brass Female Hose Ridged End x NPT Shank
Item # 209A-4B, 1/4 Inch (in) Hole Inner Diameter and 1/4 Inch (in) Pipe Thread size Brass Female Hose Ridged End x NPT Shank