Custom Double Undercounter Water Filter Purifier with Doulton Ceramic 12,000 Gallons Removes Chlorine, Lead, Chemicals, Heavy Metals. Remove harmful bacteria, such as E. Coli, Fecal coliform, Samonella, Streptococcus, cysts. Leaves beneficial minerals, such as calcium and magnesium, intact Convenient - quality water right at your tap. Quick-connect fittings make installation a snap!