Model # RF-9999 Our ULTIMATE in Filtration. This PuR Faucet Mount Replacement Filter safely removes microorganisms like giardia and cryptosporidium, as well as other potentially harmful contaminants. Each of these replacement filters come standard with an Automatic Safety Monitor Gauge™ that shuts off the flow of the filtered water (not the regular tap water) when the filter needs replacement. Each filter can provide up to 100 gallons (approx. 2-3 months) of quality water. |