Compatible to Intelifil (IF-SM-AA020) 20"x2.5" 12,000 mg-L Activated Alumina Fluoride Removal Filter by IPW Industries IncWatts Compatible Specialty Filter 20"x2. 5" Activated Alumina Fluoride Removal Filter Compatible replacement for Intelifil IF SM AA020. Removes fluoride, arsenic, and other contaminants using high capacity activated alumina media rated for 12,000 mg L 10 Micron 12,000 mg L Capacity Fluoride & Arsenic WHY IT WORKS Activated alumina targets fluoride through chemisorption, binding contaminants at the molecular level Fluoride Reduction Brings effluent