KOHLER K-22322 Aquifer Shower filter replacement two-packThe Aquifer shower filter replacements work with the K 22321 Aquifer Shower Filter to reduce chlorine and odor in your water, while controlling scale, and to keep your shower clean and smelling fresh. Reduces chlorine and odor, and controls scale Reduces skin dryness and irritation and is gentle on your hair 4. 0 gpm (15. 1 lpm) maximum flow rate at 60 psi (4. 14 bar) Filter media lasts up to 8,000 gallons (30,000 liters) or six months Includes two