This 10″ Green Coconut Carbon Block Filter is compatible with the HydroLogic Stealth-RO150 and Stealth-RO300 Reverse Osmosis Systems, and the HydroLogic smallBoy Dechlorinator & Sediment System.
This product is an equivalent alternative to HydroLogic Part Number HL 22110 and Hawthorne Part Number HGC741646.
Do you need to replace all of your Stealth-RO or smallBoy Filters? Check out these full kits:
- Stealth-RO150 Replacement Filter Kit – (GG-660410)
- Stealth-RO300 Replacement Filter Kit – (GG-660415)
- smallBoy Replacement Filter Kit with Green Coconut Carbon – (GG-660430)
- smallBoy Replacement Filter Kit with KDF85/Catalytic Carbon – (GG-660435)
In water filtration, coconut carbon is preferred over other forms of carbon due to its greater surface area and higher porosity – meaning it has superior absorption capabilities. Our Green Coconut Carbon Block filter removes 99% of impurities and VOCs volatile organic compounds) including chlorine, rust, sediment, and silt.
- Flow Rate: up to 1 GPM (gallons per minute)
- Filtration down to 10 microns.
- Offers high dirt load capacity while maintaining flow efficiency (with proper use).
- Does not release carbon fines.
REPLACEMENT SCHEDULE: To keep your filter in optimum working condition, we recommend replacing every 1,250 gallons if used with the HydroLogic Stealth RO System, and every 3,000 gallons if used with the HydroLogic smallBoy System.




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