Ultima Replacement RO Filter Pack
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Flexible returns
A full set of pre- and post-membrane replacement cartridges for your Ultima RO system’s annual service, sized to match your system’s stage count.
- 4-stage pack (RO3004) fits the Ultima VI and other 4-stage RO systems
- 5-stage pack (RO3005) fits the Ultima VII, Green 5-Stage, and other 5-stage RO systems
- Includes a filter wrench and instructions
- Does not include the RO membrane — order that separately if it’s due for replacement
Please note: this is the official OEM replacement for your Ultima system, sold under the same part number. Depending on what Ultima has in stock, the filter may ship with a different brand label.
Not sure which size fits your home? Send us a message with your household size and water source and we'll size it for you.
Water Solutions Online is an independent Ultima dealer. Ultima is a trademark of its owner.