Hydro-Logic

Hydro-Logic Hydro-Logic Purification Systems is the leader in water purification in the hydroponic industry. Since their inception there have been a number of other companies that have entered the market but despite their marketing efforts and lower prices, they simply cannot touch the quality and service that Hydro-Logic offers. Their original line of Stealth Reverse Osmosis systems set the bar and continues to do so today. The Merlin was their commercial size reverse osmosis system, which was then replaced by the Evolution, which boasts 1000 GPD of clean, filtered water. And if that's not big enough they also have a line of commercial RO systems called Hyper-Logic that start at 1000 GPD and goes up to tens of thousands of gallons per day. For growers who only need to eliminate chlorine and other VOC's they offer the Small Boy, Tall Boy and Big Boy filtration systems that do not include an RO membrane and offer a lower cost. Hydro-Logic was also the first company in our industry to offer KDF-85 as a replacement/upgrade to the standard carbon filters in all the systems they offer. KDF-85 not only lasts twice as long as standard carbon, it also eliminates most of the chloramines present in municipal water. Unlike chlorine, chloramines remain in water for many months and cannot be removed by aeration or standard carbon filters.

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  • HydroLogic Evolution RO1000 Reducer Elbow

    Replaces standard Evolution RO1000 green drain elbow to save 50% of the drain water. Gives a 1:1 ratio. Does not reduce flow of purified water. Orange with 3/8" QC fitting- Save more water! Included as standard equipment with Evolution RO 1000. Learn More
  • HydroLogic Tall Sediment Filter 20in

    Replacement Sediment Filter for Hydrologic Tall Boy and Tall Blue Series Systems. Learn More
  • HydroLogic QC Union Connector 1/4"

    1/4" Quick Connect Union Connector. This is to connect 2 lengths of equal sized tubing together for the Stealth RO system as well as the Small Boy system.

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  • HydroLogic micRO75 Reverse Osmosis System

    Micro sized, portable reverse osmosis system. Entry level, economical solution. 75 gallons per day. Includes KDF/carbon pre-filter and 75 GPD membrane. Also comes with garden hose connector, 1/4" shut off valve, and pressure gauge. Features 2:1 drain to product water ratio for maximum efficiency.

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  • HydroLogic Evolution Membrane Element

    Replacement RO Membrane for Hydrologic Evolution RO System. The Evolution requires two membranes.

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  • HydroLogic Small Boy w/ KDF85 Carbon Filter Upgrade

    Growers who need clean tap water on demand but cannot wait for purified RO water can use the Small Boy filter. At one gallon per minute (60 gph/1440 gpd), the Small Boy removes 99% of chlorine and 90% of the sediment particles (eg rust, silt etc). Eliminating the chlorine from the water provides a healthier environment for beneficial microbiology. This suites growers who have organic systems like soil and coco and are adding expensive organic additives, beneficial organisms and compost teas. There is nothing like adding expensive microbes and then killing them off with highly chlorinated city water. City water that is filtered through the Small Boy filtration system is drinkable and healthier as the chlorine has been removed (chlorine has been linked to cancer!). The carbon and sediment filters should be changed every 2-4 months or after 3000 gallons of water.

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  • HydroLogic Merlin GP Membrane

    Replacement Membrane Filter for Hydrologic Merlin RO System. Learn More
  • HydroLogic QC Garden Hose Connector 3/8"

    3/8" Quick Connect x Plastic Garden Hose Connector - Feed Valve. This is the replacement feed valve for the Stealth RO system as well as the Tall Boy system.

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  • Hydro-Logic Color Changing DI Replacement Cartridge (Big) for Evolution RO1000

    Standard replacement for 4.5" x 10" diameter DI add-on filter. Color changing to indicate when to replace. Translucent housing. Learn More
  • HydroLogic Merlin GP Green Carbon Filter

    Replacement Carbon Filter for Hydrologic Merlin RO System. Learn More
  • HydroLogic Stealth RO 150 Flow Restrictor / Flush Kit Assembly

    Standard equipment for Stealth RO 150. Power flushes Stealth-RO membrane(s). Flushes away built up scale from the membrane surface to extend membrane(s) life. Learn More
  • HydroLogic Big Boy Garden Hose Connection

    Female garden hose thread inlet and male garden hose thread outlet. To hook Big Boy up to garden hose. Learn More
  • HydroLogic Big Boy

    Big Boy extra high capacity de-chlorinator and sediment filter. High flow rate of 7 gallons per minute or 420 gallons per hour. Whole house filter or stand alone (*with optional garden hose connection kit). It has a 25,000 gallon capacity. Removes 99% of chlorine and 95%+ of sediment. Give your plants and family pure H20 with NO offensive tastes or odors.

    Includes: 2-stage oversized housings with pleated, cleanable sediment and carbon block filters, Inlet and outlet pressure gauges, Heavy duty wall mountable aluminum bracket - NO RUST, 1" inlet and outlet for whole house application, Filter wrench and instructions.

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  • HydroLogic Stealth Sediment Filter

    Replacement Sediment Filter for Hydrologic Stealth 100 or 200 Series Reverse Osmosis Systems. The Sediment Filter will remove silt, rust, sand, etc.

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  • Hydro-logic Stealth RO 300 Reverse Osmosis System w/KDF Carbon Filter

    This model includes a KDF85 carbon filter instead of the standard carbon filter, which eliminates chloramines. For more information on the KDF85 carbon filter, click here.

    Hydro-Logic is proud to introduce the latest in their Stealth line of reverse osmosis systems - the Stealth RO300. New features include: 50% higher capacity (300 GPD vs. 200 GPD), 1:1 and 2:1 ratios now included in the box, as well as their Membrane Power Flush Kit to keep your system running as efficiently as possible.

    The Stealth-RO300 produces up to 300 gallons per day of ultra pure, low ppm water. This system removes more than 95% of chlorine, hardness (calcium & magnesium), excessive minerals (iron oxides, fluorides and other heavy metals), and all other contaminants. Wastes approximately 50% less drain water than other RO systems on the market. Everything you need to get started producing bottled-quality water is included in the box.

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  • HydroLogic Float Valve 3/8in for Evolution

    This valve comes with a 3/8" quick connect fitting. Use this float valve to adjust water level and can be mounted horizontally or vertically. The kit allows you to fill a reservoir or tank, unattended, to your desired water level. Works with the Hydrologic Evolution and other RO systems that use 3/8" tubing.

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  • HydroLogic Stealth KDF85 Carbon Filter

    KDF85 Filter is ideal for well water users with iron and sulfur and city water users with chloramines. Replacement Carbon Filter for Hydrologic Stealth 100 or 200 Series Reverse Osmosis Systems and Hydrologic Small Boy. The Carbon Filter will remove sediment, chlorine, organic chemicals, etc.

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  • HydroLogic PreEvolution High Capacity Pre-Filter

    The PreEvolution - High Capacity Pre-Filter helps ensure your Evolution RO-1000 runs more efficiently by adding an additional two stages of filtration. The sediment filter is cleanable and re-usable, while the catalytic carbon filter uses a combination of KDF85 and KDF55 for reducing chlorine, chloramines, iron, sulfur, and heavy metals - great for city or well water. The added filtration extends filter life from 2,000 gallons to 7,500 gallons. Highly recommended when using more than 150 gallons of purified water per week.

    Includes:

    • 2 stage 20" x 4.5" pre-filter unit
    • Pleated, cleanable sediment filter
    • KDF85/55 with catalytic carbon filter
    • Wall mountable metal bracket
    • 1/2" quick connect fittings
    • 4 ft. feed line to the Evolution RO-1000
    • Filter housing wrench
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  • Hydro-logic Stealth RO 150 Reverse Osmosis System w/KDF Carbon Filter

    This model includes a KDF85 carbon filter instead of the standard carbon filter, which eliminates chloramines. For more information on the KDF85 carbon filter, click here.

    Hydro-Logic is proud to introduce the latest in their Stealth line of reverse osmosis systems - the Stealth RO150. New features include: 50% higher capacity (150 GPD vs. 100 GPD), 1:1 and 2:1 ratios now included in the box, as well as their Membrane Power Flush Kit to keep your system running as efficiently as possible.

    The Stealth-RO150 produces up to 150 gallons per day of ultra pure, low ppm water. This system removes more than 95% of chlorine, hardness (calcium & magnesium), excessive minerals (iron oxides, fluorides and other heavy metals), and all other contaminants. Wastes approximately 50% less drain water than other RO systems on the market. Everything you need to get started producing bottled-quality water is included in the box.

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  • HydroLogic Flowmaster Flow Meter - 3/8"

    The Flowmaster measures much of filtered water that has gone through the system and alerts you when it's time to change filters. You can program in the filter capacity and when you reach the target number of gallons, the Flowmaster beeps. No more guessing when your filter's are past their useful life. Ensures your system at its peak efficiency for removing contaminants. High flow model ranges from 0.2 GPM to 2.0 GPM flow rate and comes with 3/8" quick connect fittings for Evolution, Merlin-Garden Pro and Tall Boy.

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