CRL Stainless Base Flange for 2″ Outside Diameter Square Pipe Rail - Lunaapro
Stainless Steel Round Base Flange Sleeve – Inline Design
Amazon.com: Structural Pipe Fitting, 1-1/2" Heavy Duty Square Base Flange, 34F-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
SteelTek 1-1/4-in Structural Galvanized Floor Flange in the Structural Pipe & Fittings department at Lowes.com
Slip-On Tube Flange - Machine Finish (38SL) 3" Tube OD