Comparison : Item # 300-8-8-S/S, 1/2 Inch (in) Flange Size CD61 SAE J518 JIC Thread Straight Flange
Item # 300-12-12-S/S, 3/4 Inch (in) Flange Size CD61 SAE J518 JIC Thread Straight Flange
Item # 300-16-16-S/S, 1 Inch (in) Flange Size CD61 SAE J518 JIC Thread Straight Flange
Item # 300-20-20-S/S, 1-1/4 Inch (in) Flange Size CD61 SAE J518 JIC Thread Straight Flange
Item # 300-24-24-S/S, 1-1/2 Inch (in) Flange Size CD61 SAE J518 JIC Thread Straight Flange