The Baleen Filters RJPAC-BB-1-20 is an excellent filter cartridge that is designed and manufactured with high quality Coconut Shell Carbon filtration media and filters to 1 Micron. Replacing the Hydronix CB-45-2001, this product fits most housings that accept 20" x 4.5" cartridges and is engineered to provide the finest great tasting drinking water. Also, carrying certifications and approvals of: NSF 42 Standard, FDA, ISO 9001

• Replacement Carbon Block CTO Filter Cartridge - High Density Carbon Block Extrusion
• 1 Micron Filtration Rating - Water Filtration System
• Universal Replacement Filter Cartridge - NSF 42 Standard, FDA, ISO 9001
• Water Filtration System - Reduces Dirt, Rust, Silt, Sane, and Other Sediment
• Excellent for Prefiltration Protection of Reverse Osmosis, Whole House, and Commercial Systems Units

Replacement Carbon Block CTO Filter Cartridge - High Density Carbon Block ExtrusionBaleen Filters