Coconut Stealth/Small Boy Carbon Replacemnt Filter

HYDROLOGIC STEALTH-RO AND SMALLBOY GREEN COCONUT CARBON FILTER 1 GPM - 10 MICRON FILTRATION - Green Coconut Carbon Filters are the carbon block pre-filter that will reduce chlorine, organic chemicals, mercury, lead, PBCs, sulfur and heavy metals. Replace every 3,000 gallons for smallBoy and every 1, 250 gallons for Stealth-RO.