Hydro Logic BIGboy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH

Hydro Logic BIGboy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH

Hydro Logic Brand Product
$294.95 - $339.95

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BIGboy from Hydro Logic

This filter can be set up as either a whole house (point of entry) filter or a stand alone (point of use)m filter. The BIGboy has high flow rates of 7 gallons per minute and a very long filter life of 25,000 gallons (50,000 gallon filter life with upgraded KDF/CAT Carbon Filter). The filter can effectively remvoe up to 99% of free chlorine and sediment (sand, silt, rust), objectionable tasts and odors, and volatile organic compounds. This filter is not designed to significantly lower the Parts Per Million (PPM) of your water. The majority of PPM is minerals which can only be removed with Reverse Osmosis. If you are looking for Reverse Osmosis filters, Hydro Logic has the Stealth 150 , Stealth 300, and Evolution systems.

Having Chloring and sediment free water is essential to growing healthy plants and maintaining benficial micro-organisms, bacteria and fungi in your root zone and growing medium. These microbes can noty survive in the presense of chlorine. Chlorine free water is also essential for organic compost tea and extraction solution brewing, hydroponics and any bio-organic gardening method.


Instantly de-chlorinates your water at fast flow rates of 420 gallons per hour. Don't give your prized plants straight hose water. Keep your beneficial micro-organisms alive and thriving. Perfect for brewing compost teas or biological extract solutions. Grow brighter flowers, bigger fruit, and healthier plants.

Ultra high capacity instant de-chlorinator. Removes 99% of chlorine and 95%+ of sediment, rust, silt, etc. Comes with cleanable sediment filter and in/out pressure gauges to monitor when to change filters. Can be used as a whole house filter or stand alone.


  • High flow rate of 7 gallons per minute or 420 gallons per hour
  • Whole house filter or stand alone unit
  • 25,000 gallon capacity
  • Removes 99% of chlorine and 95%+ of sediment
  • Give your plants and family pure H2O with no offensive tastes or odors

BIGboy System Includes:

  • 2-Stage over-sized housings
  • Sediment pre-filter
  • Green coconut carbon filter OR Upgraded KDF85 Carbon Filter
  • Wall mountable metal bracket
  • 1 in. inlet and outlet whole house application
  • Filter wrench
BIGboy System

Premium KDF/CAT Carbon Filter

For chlorine and chloramines reduction for city water. Also for well water for iron, hydrogen sulfide, and heavy metals reduction. Will last TWO TIMES AS LONG as the standard green carbon filter. Reduces chloramines, chlorine, iron, sulfur and heavy metals. Bacteriostatic qualities do not allow microbes to breed in filter.

Replacement & Upgraded Filters

BIGboy Pleated Sediment Filter

BIGboy Pleated Sediment Filter

Clean regularly & chagnge anually

BIGboy Green Coconut Carbon Filter

BIGboy Coconut Carbon Filter

Replace after 25,000 Gallons

BIGboy KDF/Catalytic Carbon Filter

BIGboy KDF/CAT Carbon Filter

Replace after 50,000 Gallons

BIGboy ChloraShield

BIGboy ChloraShield

Replace after 24,000 Gallons

BIGboy Specifcations

  • Product Flow Rate: 420 GPH / 7 GPM
  • Dimensions: 29.5" x 16" x 8.5"
  • Weight with standard green filter: 30 lbs
  • Weight with KDF filter: 33 lbs.
  • Replace housings every 3 years

Hydro Logic BIGboy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH Videos

Flushing a KDF Carbon filter

Product Q&A

Hydro Logic BIGboy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH Questions & Answers

Why isn't my SmallBoy TallBoy or BigBoy reducing my PPMs?
These are sediment and dechlorinating systems, they remove sediment, chlorine, volatile organic compounds, tastes and odors. In order to reduce PPMs one needs to purchase a reverse osmosis system such as our Stealth RO100, Stealth RO200 or Evolution RO1000.

Can I drink the water out of my SmallBoy, TallBoy or BigBoy?
This depends on what type of contaminants you were hoping to filter out. These 3 systems are dechlorinating and sediment filters, they do not remove PPMs (parts per million) or harmful contaminants such as pharmaceutical residue, pesticide run-off or arsenic to name a few. This means that if your source water is not approved as drinking water (such as a stream or pond), then these systems will not make it safe. You may need to use a UV sterilizer and/or reverse osmosis to make this type of water safe to drink. If, however, your source water is city water or well water that was approved for drinking before it ran through the system, then it is still safe to drink-- probably even safer!


Hydro Logic BIGboy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH Reviews

Filters water pretty fast
I'm happy with how quickly this is filtering the water

Tech Specs