The Omnipure SCL10 is a 2" x 10" GAC Phosphate Inline Filter.This filter aids in the removal of chlorine taste and odor. Additional Details ------------------------------ Bullet point: HIGH-QUALITY WATER FILTRATION: The Omnipure SCL10-B inline water filter is designed for superior water filtration, featuring granular activated carbon (GAC) that removes chlorine, organic compounds, and improves taste and odor. Ideal for use with reverse osmosis systems, this water filter also features a phosphate scale inhibitor, preventing mineral buildup in pipes and appliances. With its 1/4" NPT connection, this water filter is perfect for undersink applications, improving water quality.