3"

2 Bolt - MIld Steel Flange Designed for a 3" Tube to slip into it, flange is designed with no inner lip. Casted Mild Steel 3/8" Thickness 

2 Bolt - Stainless Steel Flange Designed for a 3" Tube to slip into it, flange is designed with no inner lip. Casted Stainless Steel 3/8" Thickness 

2 Bolt - Stainless Steel Flange Designed for a 3" Tube to slip into it, flange is designed with a inner lip. Casted -Machined - Stainless Steel

2 bolt flange constructed from Titanium material with an ID of 3". This flange can mate to titanium, aluminum, steel or stainless steel flanges. Material: CP2 TitaniumInner Diameter: 3 Inches Measurements: Bolt Center to Center: 4-1/4" Side to Side Total Size: 5-1/4" ***Sold Individually ...