NW/KF Aluminum Flange Clamp + Flange Centering Clamp Ring Centering O-rings with Fluorine Rubber (kf-50) - Labideal
Schedule 40 Butt-Weld x C61 O-Ring Flange Heavy Duty
Ideal Vacuum | ASA 6 Inch Blank Flange with O-Ring Groove, Not Bored, Not Rotatable, 11 in OD, 9.5 BCD, 0.81 in Hole Diameter, 8 Holes, 304 Stainless Steel
Ideal Vacuum | ASA 8 Inch Blank Flange with O-Ring Groove, Not Bored, Not Rotatable, 13.50 in OD, 11.75 in BCD, 0.81 in Hole Diameter, 8 Holes, 304 Stainless Steel
OATEY 1/4 in. Stainless Steel Toilet Flange Replacement Ring 427782 - The Home Depot
ISO-MF Flange Rotatable Bolt Ring
Oatey 7-in White PVC Flange Repair Ring in the Toilet Flanges department at Lowes.com