threaded openings 42 are provided in said flange a generally flat clamping ring 43 is provided and includes openings 44 passing therethrough each of the openings 44 is preferably smooth bore and of slightly larger diameter than threaded openings 42 threaded bolts 45 are adapted to pass through smooth openings 44 of clamping ring 43 and be threaded into openings 42 of clamping flange 41 to use the closet ring of the present invention an opening is provided in floor 31 having a diameter less than the diameter of closet flange 26 but greater than the greatest distance between opposed bolt tabs on the bottom section 12 a drain pipe 32 is centrally disposed in the opening in floor 31 and projects above the plane thereof next the gasket 16 is inserted into the bottom section 12 so that its exterior surface 17 lies juxtaposed to interior surface 14 and such gasket 39 s beveled surface 18 lies juxtaposed to beveled shoulder 15 top section 11 is telescopically inserted into the interior of bottom section 12 until lower surface 23 39 rests against the upper surface 19 of gasket 16 bolts 28 are then passed through openings 27 of top section 11 and threaded into openings 30 of tabs 29 of bottom section 12 until barely snug the now assembled two piece closet ring 10 is next slipped over pipe 32 until the bottom of flange 26 engages the upper surface of floor 31 and rests thereon bolts 28 are then tightened down thereby pushing gasket 16 downwardly against beveled surface 15 which forces such gasket inwardly against pipe 32 sealing ribs 22 compress more readily than the remaining portions of gasket 16 and therefore will conform to any surface.