The Omnifilter TO1 2-pack is the correct replacment water filter for the following models:
The OmniFilter T01, TO1 Carbon Water Filter - 2-pack reduces dirt, sand, sediment, and rust particles from your water, as well as chlorine. The Omni Filter T01 ( TO1 ) can be used in Omni whole house models OB1, OB5, Omni Regular, Omni R12, Omni R14, U24 and U25. Also known as TO1-DS
The OmniFilter T01 Whole House Carbon Wrapped Water Filter reduces:
The Omnifilter TO1 2-pack specifications:
This product was known previously as model number TO1-DS12-01 & TO1-DS12-02 and is now known by model number TO1-DS12-05.
Price is for 2 filters.