The GE 1244746 has been discontinued. The Pentek 255526-43 is a suitable replacement filter.
The GE Merlin Carbon Post-Filter, part number 1244746, is the in-line post filter for the revolutionary GE Merlin Reverse Osmosis System. This post filter is the final step of this water purification process, which "polishes" the water to make it suitable for drinking.
The Merlin Carbon Post Filter should be changed every 6-12 months based on water quality and usage.