Ultima Replacement Carbon Block Filter

A drop-in carbon block replacement cartridge for Ultima filter housings, sized to fit standard 10 in. and 20 in., and 2.5 in. or 4.5 in. (Big Blue) housings.

• Solid carbon block media for reducing chlorine taste and odor
• Available in 2.5 x 10 in., 2.5 x 20 in., 4.5 x 10 in. (Big Blue), and 4.5 x 20 in. (Big Blue) sizes
• Sold individually; case packs of 6–20 available (ask us for case pricing)

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.