Comparison : Item # W87-12-12, 0.75 Inch (in) Pad Size O-Ring CD61 Saddle Weld Tube 4-Bolt Flange
Item # W87-16-12, 0.75 Inch (in) Pad Size O-Ring CD61 Saddle Weld Tube 4-Bolt Flange
Item # W87-16-16, 1.00 Inch (in) Pad Size O-Ring CD61 Saddle Weld Tube 4-Bolt Flange
Item # W87-20-16, 1.00 Inch (in) Pad Size O-Ring CD61 Saddle Weld Tube 4-Bolt Flange
Item # W87-20-20, 1.25 Inch (in) Pad Size O-Ring CD61 Saddle Weld Tube 4-Bolt Flange