The Aries AF-20-3314 is the correct phosphate filter cartridge for the following water filter housings:
The Aries All Phosphate 20" Water Filter AF-20-3314 - 9 Pack is a replacement water filter cartridge manufactured with phosphate crystals that reduce or remove lime scale build-up. This 20" water filter cartridge also effectively treats corrosion and iron problems for your health and safety. The Aries phosphate filter fits standard 20" water filter housings. The Aries AF-20-3314 includes nine replacement water filter cartridges.
Aries All Phosphate 20" Water Filter AF-20-3314 specifications: