4" ID / OD 45 Degree Exhaust Elbow with 9.25" Arms - 16 Ga. Steel

One 45 degree exhaust elbow pipeThis elbow has one 4" ID end and one 4" OD endBoth arms are 9.25" from end to center of the 90 degree bend (this measurement is noted as L1 and L2 on the 2nd picture in the listing)Made of 16 gauge cold rolled steelPlease...