The IcePure RWF1200A Refrigerator Water Filter is a 3-pack that includes 3 air filters for LG refrigerators. It is certified by NSF42 and NSF372, with a filtration method of carbon/charcoal. The filter is made of natural coconut shell activated carbon and has a filtration life of 6 months or 200 gallons. It can remove chlorine taste and odor, and is suitable for household use. With a flow rate of 0.5-1 GPM, this lead-free filter has a capacity of 200 gallons and is designed for easy installation. Free return is available, and delivery is within 3 working days.