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Hydro Logic Big Boy Extra High Capacity De-Chlorinator and Sediment Filter - 420GPH


Hydro Logic
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Hydro Logic Big Boy Extra High Capacity De-Chlorinator and Sediment Filter - 420GPH

Additional Images


Waste Water Ratio
No Waste
Flow Rate

Per Minute

Filter Types

UV - Optional

Water Pressure
80 PSI


Carbon Filter Life


Hydro Logic's highest capacity scrubber with a flow rate of 7 GPM/420 GPH! Different than a reverse osmosis system, this easy-to-use, fully assembled water filter hooks right to your garden hose and scrubs out the dirt and disinfectants.

Ultra high capacity instant de-chlorinator. Removes 99% of chlorine and 90% of sediment. 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. Optional KDF85/Catalytic Carbon upgrade filter offers reduction of chloramines, chlorine, iron, sulfur and heavy metals. Great for city water and will last twice as long as the standard green coconut carbon filter.


  • 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

This System Includes:

  • 2-Stage over-sized housings with pleated, cleanable sediment filter and GGreen Coconut Carbon Filter or upgraded KDF85/Catalytic Carbon Filter.
  • Heavy duty wall mountable aluminum bracket - will not rust.
  • 1" inlet and outlet whole house application
  • Filter wrench

Optional KDF85 Carbon Filter Upgrade

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 - 50,000 Gallons as the standard green carbon filter. Prolongs the life of the membranes. Reduces chloramines, chlorine, iron, sulfur and heavy metals. Bacteriostatic qualities do not allow microbes to breed in filter.

Check out all of the optional add-ons, upgrades and filters for the Hydro Logic Big Boy on the "Parts and Related Items" Tab above, including:


Brand Hydro Logic
Height (in.) 26
Width (in.) 12
Length (in.) 6
Warranty Yes
Free Shipping Yes
Gallons Per Hour 420
GPD 10,080

Hydro Logic Big Boy Extra High Capacity De-Chlorinator and Sediment Filter - 420GPH Videos

Flushing a KDF Carbon filter

Hydro Logic Big Boy Extra High Capacity De-Chlorinator and Sediment Filter - 420GPH 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!

Customer Reviews

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

(Posted on February 19, 2016)
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