The Aries AF-10-3690 is a 10-inch standard-size replacement cartridge specifically engineered to reduce fluoride from potable water supplies. It uses a high-capacity activated alumina media, which is the industry-preferred adsorbent for fluoride reduction. This cartridge fits standard 10" x 2.5" filter housings and is ideal for point-of-use (POU) drinking water systems where fluoride reduction is the primary concern.

The Aries AF-10-3690 fluoride filter cartridge has a rated capacity of approximately 400 gallons, depending on incoming fluoride concentration, pH, and overall water quality. For most households, this equates to roughly 6 months of service life. Lower pH water (below 8.5) optimizes the activated alumina's fluoride adsorption performance, while higher fluoride concentrations will shorten the cartridge life.

For optimal fluoride reduction, the Aries AF-10-3690 should be operated at a maximum flow rate of 0.5 GPM (gallons per minute). Slower contact time with the activated alumina media significantly improves fluoride adsorption efficiency. The cartridge operates within a temperature range of 40°F to 100°F and a pressure range of 20–90 PSI, making it suitable for most residential drinking water applications.

The Aries AF-10-3690 is built to standard 9.75" x 2.5" dimensions, making it compatible with virtually any standard 10-inch filter housing, including Aries, Pentek, and other industry-standard Big Blue-style slim housings. It features a standard double open-end (DOE) configuration, allowing for straightforward drop-in replacement in most under-sink or countertop fluoride reduction systems.

Yes, Aries recommends installing a sediment pre-filter (5-micron or finer) upstream of the AF-10-3690 to protect the activated alumina media from particulate fouling and extend cartridge life. Upon installation, flush the cartridge for 5–10 minutes to remove any fine alumina dust before use. Replace every 6 months or 400 gallons, whichever comes first, to maintain consistent fluoride reduction performance.