【CERTIFIED AND TESTED】: Tested and certified by NSF International against NSF/ANSI Standard 42 for the absorption of chlorine taste and odor and particulate.
【REPLACEMENT CYCLE】: To achieve optimal performance, change your filter every 6 months or 300 gallons.
【PREMIUM MATERIAL】: Uses high-grade natural coconut shell activated carbon block as filtration material, which features better adsorptive ability and better filtration performance with microscopic pores.
【HIGH QUALITY】: Easy to install and quick to change. High quality, cost-effective alternative to factory original.