WSF-R38S/WSF-R50S) Stainless Steel Floor & Wall Base Flange (Round Beveled) – Top Hardware
Base Flange
1FR1033 Base Flange – Round – Stainless Steel - Lunaapro
Amazon.com: Structural Fitting, 1-1/2" Round Base Flange, 31F-8, Aluminum Magnesium, Please note. ID of fitting is 1.925, to take nominal 1-1/2" steel pipe which all have an OD of 1.9". : Industrial
6’ Stainless Marine Windsock Pole With 4 Bolt Stainless Base Flange