Tube Diameter - 4" Oval to O.D. Round Transition Adapter Length - 6" Tube Thickness - 0.065" (1.65mm) T304 Stainless Steel is a non-magnetic alloy that possesses very high chromium and nickel content, making it much more capable of withstanding acidic, high heat and corrosive conditions than regular (mild) steel.
DETAILED SPECIFICATIONS:

Connection Type	Butt-Weld (Tube)
Wall Thickness	16ga (0.065")
Height	6"
Finish	Mill Finish
Tube OD (1)	4" Oval
Tube OD (2)	4" Round