Everpure ® THM-1 # 9601-26 • Replacement Water Filter Cartridge #1 for QC4-THM Systems. (To be used with THM #2 Cartridge.) • Reduces chlorine tastes and odors. • Reduces scale build-up that can clog appliances. • Sanitary quick change cartridge is easy to install and replace. • Capacity: 700 gallons (2,650 L) • Flow Rate: 1/2 GPM • Certifications: NSF 42, NSF 53, WQA Gold Seal.