Pentair Pentek CBC-10 Carbon Water Filter — 10-Inch, 0.5 Micron, Under-Sink Replacement

The Pentair Pentek CBC-10 is a compact carbon block cartridge that targets chlorine taste and odor while delivering finer filtration than many standard carbon blocks. With a nominal 0.5 micron rating, it captures fine particulates and sediments at the same time, offering substantial chlorine reduction capacity when used at common home flow rates. At a 1 gpm flow, this CBC-10 is designed for more than 20,000 gallons of chlorine reduction, helping you enjoy clearer water over months of use.

Built with bonded powdered activated carbon (PAC), the CBC-10 combines robust dirt-holding with efficient adsorption, making it suitable as a standalone filter or as a polishing/pre-filter in multi-stage systems. It fits all standard 10" x 2.5" housings and is widely used in under-sink configurations, RO pre-filters, and similar setups. Operating temperatures range from 40 to 180 degrees Fahrenheit, and the initial pressure drop is typically under 20 psi at 1 gpm, helping maintain steady flow as you filter.

Core filtration and compatibility

• Cleaner, better-tasting water by reducing chlorine taste and odor with substantial capacity at typical home flow
• Ultra-fine nominal filtration at 0.5 micron captures finer sediment that larger blocks may miss
• NSF/ANSI Standard 42 certified materials ensure safety and quality of construction
• Universal fit for standard 10" x 2.5" housings; suitable for under-sink, multi-stage, RO pre-filter, and more
• Long-lasting performance with a recommended replacement every 3–6 months, depending on use and water quality

Performance in daily use

• Experience clearer water at the tap, with the potential for improved taste and aroma in beverages
• Designed to operate across a wide temperature range while maintaining steady flow at low pressure
• Carbon block design offers higher dirt-holding capacity than some GAC options, supporting longer intervals between changes

In short, the CBC-10 provides a practical balance of filtration performance, compatibility, and ease of use for residential, food service, and light commercial applications. Always follow local guidance for replacement timing, and consider your system's overall flow and usage when planning cartridge changes.