Amazon.com: Structural Pipe Fitting, DIY Outdoor - 1-1/2" Adjustable Ell or Tee, 80A-8, Aluminum Magnesium, Please note. ID of fitting is 1.925, to take nominal 1-1/2" steel pipe which all have an
Amazon.com: Structural Pipe Fitting, DIY Outdoor - 1-1/2" Adjustable Base Flange, 89A-8, Aluminum Magnesium, Note: ID of fitting is 1.925, to take nominal 1-1/2" steel pipe which all have an OD of