Comparison : Item # 8T-8SF, 0.50 Inch (in) Tube Size and 0.406 Inch (in) Dimension B O-Ring CD61 Tube Flange Head Fitting
Item # 10T-8SF, 0.63 Inch (in) Tube Size and 0.500 Inch (in) Dimension B O-Ring CD61 Tube Flange Head Fitting
Item # 12T-12SF, 0.75 Inch (in) Tube Size and 0.656 Inch (in) Dimension B O-Ring CD61 Tube Flange Head Fitting
Item # 16T-12SF, 1.00 Inch (in) Tube Size and 0.75 Inch (in) Dimension B O-Ring CD61 Tube Flange Head Fitting
Item # 16T-16SF, 1.00 Inch (in) Tube Size and 0.906 Inch (in) Dimension B O-Ring CD61 Tube Flange Head Fitting