This is the only one I found
http://www.crystalclearsupply.com/Custom_Triple_Undercounter_Water_Filter_p/uct.htm

But heres what it says about the flouride filter
Quote

Contains fine-mesh pre-conditioned Activated Alumina to reduce fluorides below 0.5 ppm. Its capacity is up to 11,000 ppm with effluent levels below 0.2 ppm from 10 ppm feed. Note: high pH and high bicarbonate levels reduce the capacity - above 100 ppm bicarbonate, reduce by 50%; above 200 ppm, reduce by 75%. Also effectively removes arsenic.