Braxton Harris Company 3″ x 4″ PVC Offset Closet Flange Less Knockout
Fits outside of 3″ and inside of 4″ DWV pipe. Has four mounting slots to allow precise alignment of water closet. Fits flush with floor. Four screw holes to fasten to floor. Allows up to a 2″ offset in placement for water closet. Allows for four directional adjustments.