The 3M Cuno 05-721 accepts the following water filter replacements:
The 3M CUNO Carbon Based Drinking Water System 05-721 is a water filtrations system that arrives with several installation parts, including feedwater shut-off valve, tubing, and mounting hardware. The 3M CUNO Water Factory CoolerMATE CM-2-CTO Drinking Water System includes a dual cartridge filtration system that reduces the taste and odor of chlorine, as well as sediment and rust. This 3M water filter system delivers a continuous supply of water (0.6 GPM) and features quick cartridge replacements.
3M CUNO Carbon Based Drinking Water System 05-721 specifications: