Ultima Replacement RO Membrane
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Flexible returns
A replacement thin-film composite RO membrane sized to match your Ultima reverse osmosis system’s daily production rate.
- Thin-film composite (TFC) membrane
- Available in 24, 36, 50, 75, and 100 GPD ratings
- Standard 1812 housing size
- 25 in a case; sold individually here unless noted
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.