The AquaCera CeraUltra ceramic water filters offer the highest filtration efficiencies available in a ceramic based filter element. The W9522550 has a ceramic pre-filter shell outside and inside is a post-filter carbon block insert which combines powdered carbon blends and Zeolite forming a tightly packed matrix. This cleanable filter element is designed to remove suspended solids and reduce pathogenic bacteria, hydrogen sulfide, chlorine, lead, mercury and VOCs.    
Features:

• Cartridge is only open on one end to prevent water by-pass
• Fits standard 10" filter housings and countertop filter systems
• Filter capacity: 1200 gallons
• Removes 99.99% of pathogenic organisms (including E.coli, giardia, cryptosporidium, etc)
• Removes chlorine, lead, mercury, aluminum, iron, hydrogen sulfide, VOCs and more