Marketing InformationOur 3M™ AQUA-PURE™ whole house Sanitary Quick Change (SQC) replacement water filter cartridge AP917HD for the AP903 system reduces sediment, chlorine taste and odor at a flow rate of up to 10 gpm to meet the needs of large homes with at least 2.5 bathrooms. Our innovative Sanitary Quick Change (SQC) design, allows for fast and easy cartridge change-outs without having to contact the filter media or the need for a filter wrench. Our Sanitary Quick Change (SQC) is one of the industry's most advanced whole house water filtration system features for this application and also minimizes contact with the filter media.