I guess maybe I should clarify. I guess there is no flange at all. Basically the lead/aluminum? pipe just comes up to the floor and the top 1/4 inch or so of the pipe is "folded over". Then you have anchors into the concrete/wood on either side of the pipe to secure the toilet bolts to the floor. So...my question is, is there a flange that I can purchase that can extend into the existing pipe and create a seal down in the pipe? If so, how is the seal made? And I am assuming this piece would need to be also screwed down into the floor to secure it. Then I would be able to use standard slot-type bolts to secure the toilet to the flange. Thanks.