Extremely useful when repairing, replacing or tiling bathroom floors.
Allows contractor to raise the closet flange in order to accommodate the added height of a new floor.
In many cases eliminates leaky toilet connections between toilet and pipe fitting.
Stackable and self-sealing.
Simply replace existing closet bolts with 3-1/2" bolts, silicone or caulk top of existing flange and stack CF500 extender. Add wax ring and install water closet.