Hydro-Logic® KDF/Catalytic Carbon Upgrade Filters are advanced carbon block pre-filters effective in capturing water-soluble metals, chlorine, chloramines and scale. The carbon media is more porous than coco carbon providing a wider range of filtration.

Replacement should be performed when inlet pressure and outlet pressure difference is greater than 10%. NOTE: Systems come standard with Hydro-Logic® Green Coconut Carbon Filters but Hydro-Logic® KDF/Catalytic Carbon Filters are an upgrade option.

• Reduces iron, sulfur, chlorine, and heavy metals
• Rated at 1 GPM
• Great for well water
• smallBoy; Replace the after 6,000 gallons filtred
• Stealth-RO; Replace the after 2,000 gallons purified
• Granular Activated Catalytic Carbon
• KDF85 media
• Translucent housing
• Dimensions (H x W): 10" x 3"
• Weight: 1.288 lbs

• Reduces up to 99% of chlorine, sulfur, iron, heavy metals, rust and silt
• Rated at 2 GPM
• Great for well water
• Replace after 15,000 gallons filtered
• Granular Activated Catalytic Carbon
• KDF85 media
• Opaque cartridge
• Dimensions (H x W): 20" x 2.875"
• Weight: 2.713 lbs

• Reduces up to 99% of chlorine, sulfur, iron, heavy metals, rust and silt
• Great for well water
• Replace after 7,500 gallons filtered
• Dimensions (H x W): 9.75" x 4.75"
• Weight: 3.638 lbs