Water Filtration

  • Hydrologic DM-2 Industrial Dual TDS Monitor
    Hydrologic

    DM-2 Industrial Dual TDS Monitor

    Measure the untreated water coming in vs. the purified water going out of your reverse osmosis system at any time. This is important in determining when the RO membranes need to be changed.Auto-Off function conserves battery power. The unit shuts off...
    $62.21
    $82.95
  • Hydrologic Tall Blue/Boy Replacement Sediment Filter
    Hydrologic

    Tall Blue Replacement Sediment Filter

    For use with Hydrologic's water filtration systems. This is a replacement sediment filter for Tall Blue (HLTBL) or Tall Boy (HLTBY) units.
    $11.44
    $15.25
  • Hydrologic Tall Blue/Boy Replacement Carbon Filter
    Hydrologic

    Tall Blue Replacement carbon filter

    For use with the Hydrologic water filtration systems in indoor garden hydroponics. This is a replacement carbon filter for Tall Blue (HLTBL) or Tall Boy (HLTBY) units.
    $19.49
    $34.63
  • Hydrologic UV Sterilizer Kit for stealthRO
    Hydrologic

    UV Kit / Stealth RO

    Ultraviolet (UV) sterilizer for after-stealthRO water. Assures 100% of bacteria and viruses are sterilized. Its UV treatment kills all living bacteria and microbes and ensures safe water for your family and plants. 0.5 GPM Comes with ballast and...
    $99.41
    $132.55
  • Hydrologic Small Boy Dechlorinator and Sediment Filter
    Hydrologic

    Small Boy De-chlorinator & Sediment Filter

    Removes up to 99% of chlorine and 90% of sediment, rust, silt, etc. @ 1 GPM. Easily produces 60 gallons of clear water per hour filtered down to 5 microns. Filter capacity of 3,000 gallons.
    $63.09
    $112.15
  • Hydrologic Stealth Reverse Osmosis Replacement Membrane
    Hydrologic

    Stealth Replacement Membrane

    These membranes are standard equipment in our SP, CHP, MPRO, MPDI RO/DI, and the MPDW Drinking Water Systems. All 25 to 90 GPD membranes will fit in our standard membrane housing. The Standard Membrane is also available as a replacement option for most...
    $52.75
    $93.78
  • Hydrologic stealthRO 100 & 200 Booster Pump
    Hydrologic

    Stealth RO 100 & 200 Booster Pump

    The stealthRO Pressure Booster Pump increases the flow and efficiency of the StealthRO 100 water filtration system, boosting inlet pressure to 70 psi. The stealthRO needs inlet pressure between 40 and 80 psi, so for gardeners with low water pressure or...
    $186.43
    $229.44
  • Hydrologic Merlin Membrane Replacement Filter
    Hydrologic

    Merlin Membrane Replacement Filter

    Replacement membrane filter for the HydroLogic Merlin (Garden Pro) Reverse Osmosis filtration system. Easy to install. Keep your filtration system in tip top shape.
    $122.50
    $156.95
  • Hydrologic Replacement Carbon Filter for Tall Boy and Tall Blue
    Hydrologic

    Carbon Filter for Tall Boy and Tall Blue

    Now chloramines, iron, hydrogen sulphide and heavy metals don't stand a chance against Hydrologic's newest offering in replacement filters for all their water filter units. KDF85 is the most advanced media that one can use when it comes to filtering...
    $63.46
    $84.62
  • Hydrologic Replacement Carbon Filter for Small Boy/stealthRO
    Hydrologic

    Replacement Carbon Filter for Small Boy/Stealth

    Now chloramines, iron, hydrogen sulphide and heavy metals don't stand a chance against Hydrologic's newest offering in replacement filters for all their water filter units. KDF85 is the most advanced media that one can use when it comes to filtering...
    $24.65
    $43.82
  • Hydrologic Float Valve, 1/4"
    Hydrologic

    Float Valve 1/4"

    Float Valve, 1/4", works to maintain proper water levels in your Hydrologic water filtration system. 
    $16.03
    $21.37
  • Hydrologic Float Valve, 3/8"
    Hydrologic

    Float Valve 3/8"

    Float Valve, 3/8", helps to maintain proper water levels in your Hydrologic water filtration system.
    $12.03
    $21.37
  • Hydrologic Big Boy Carbon Filter
    Hydrologic

    Big Boy Carbon Filter

    Keep your water fresh, your equipment in tip-top shape, and your grow room at its best by making the commitment to exchange your filters. This carbon filter works with the Big Boy water filtration system and slips in easily to replace the one that came...
    $63.46
    $84.62
  • Hydrologic Big Boy KDF85 Carbon Filter
    Hydrologic

    Big Boy KDF85 Carbon Filter

    Hydrologic Big Boy KDF85 Carbon Replacement Filter. The KDF85 Filter is ideal for well water users with iron and sulfur and city water users with chloramines.
    $107.83
    $143.77
  • Hydrologic Big Boy Extra High Flow Water Filter System, 420 GPH
    Hydrologic

    Big Boy Extra High Flow 420 GPH

    Ultra high capacity instant dechlorinator. 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 standalone. Filter capacity...
    $351.86
    $469.15
  • Hydrologic Quick Disconnect, 1/2" x Garden Hose Adapter
    Hydrologic

    Quick Disconnect 1/2" Hose

    Quick Disconnect 1/2" X Garden Hose Adapter. Also comes in a 3/8th inch size. Comes in white. Does not include hose.  
    $7.29
    $12.95
  • Hydrologic Quick Disconnect, 3/8" x Garden Hose Adapter
    Hydrologic

    Quick Disconnect 3/8" Hose Adapter

    Quick Disconnect 3/8" X Garden Hose Adapter. Does not include hose. Also available in a 1/2" size. Comes in white.  
    $3.99
    $7.08
  • Hydrologic Big Boy w/Upgraded KDF85/Catalytic Carbon Filter
    Hydrologic

    Big Boy w/ Upgraded KDF85/Catalytic Carbon Filter

    Big Boy extra high capacity dechlorinator and sediment filter with upgraded KDF85/Catalytic Carbon filter. 50,000-gallon filter life. Can be used as a whole-house or for standalone applications.
    $404.96
    $539.95
  • Hydrologic Big Boy UV Sterilizer Kit
    Hydrologic

    UV Sterilizer Kit

    Ultraviolet Sterilizer add-on kit provides 100% protection against bacteria, viruses, cysts and pathogens in the product water. Great for well or surface water sources. Ensures the safest water. Includes stainless steel UV unit with ¾" MNPT ports, wall...
    $247.46
    $329.95
  • HydroLogic Stealth-RO300 Reverse Osmosis Filter, 300 GPD
    Hydrologic

    Stealth-RO300 Reverse Osmosis Filter - 300 gpd

    Stealth-RO300™ Removes 98%+ of all contaminants in your tap water. Leading the industry in efficiency, the Stealth includes your choice of both 1:1 and 2:1 waste to product water ratios. Customized for gardening and hydroponics. The #1 selling filter in...
    $254.96
    $339.95
  • HydroLogic Pre-Evolution Pre-Filter, High Capacity
    Hydrologic

    Pre-Evolution Pre-Filter, High Capacity

    High capacity pre-filter for Evolution-RO1000. Adds 2 extra pre-filter stages.  Ensures that the Evolution Reverse Osmosis system runs more efficiently. Reduces filter changes to every 7,500 gallons used.  The cleanable sediment filter is reusable.
    $189.31
    $336.55
  • HydroLogic MicRO RO System, 75 GPD
    Hydrologic

    MicRO 75 GPD RO 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...
    $97.50
    $129.95
  • HydroLogic GroGreen Water Filter for Garden Hose
    Hydrologic

    GroGreen Garden Hose Water Filter

    Compact garden hose filter. Eco-friendly green coconut carbon and KDF55 medias. Includes "filter saver" brass hose bib connector. Customized flow restrictor allows ideal contact time with filtration media to maximize reduction of chlorine, tastes and...
    $33.73
    $59.95
  • Hydrologic Float Valve 20+ GPM for Big Boy
    Hydrologic

    Float Valve 20+ GPM for Big Boy

    Use the Hydrologic reverse osmosis water filter Float Valve 20+ GPM for Big Boy or Delivery Pump to customize your indoor hydroponic garden.
    $56.58
    $75.43
  • Hydrologic Float Valve, 1/2" Barb, Adjustable Water Level
    Hydrologic

    Float Valve, 1/2" Barb, Adjustable Water Level

    Hydrologic's float valve with a 1/2" barbed connection provides the ability to adjust the water level in water filtration systems. The float valve can be mounted horizontally or vertically.
    $12.03
    $21.37
  • Hydrologic stealthRO 200 Eco-Waste Reducer
    Hydrologic

    Stealth-RO200 - Eco-Waste Reducer

    Standard option included with stealthRO units. Reduces waste to product ratio from standard 3:1 to 2:1. Saves more water. 
    $3.44
    $4.75
  • Hydrologic Big Boy Garden Hose Connection Kit
    Hydrologic

    Big Boy Garden Hose Connection Kit

    Use the Hydrologic reverse osmosis water filter Big Boy garden hose connection kit to customize your indoor hydroponic garden water purification system.
    $11.45
    $20.35
  • Hydrologic Small Boy Quick Connector, 1/4"
    Hydrologic

    Small Boyx1/4" Quick Connector

    These 1/4 inch Quick Connectors are for use with the Hydro-Logic Small Boy Dechlorinator and Sediment Filter. The Small Boy Dechlorinator and Sediment filter is capable of removing up to 99% of chloramines and chlorine, and up to 90% of sediment, rust...
    $4.56
    $8.12
  • Hydrologic Polyethylene Tubing, 50 feet, Blue, 3/8"
    Hydrologic

    3/8" Tubing, 50 feet, Blue

    Hydrologic's reverse osmosis filter tubing in blue. Sold in lengths of 50 feet with an outer dimension of 3/8". Extra tubing can be useful for customizing your indoor hydroponic water filtration system.
    $14.50
    $19.33
  • Hydrologic Polyethylene Tubing, 50', Black, 3/8"
    Hydrologic

    3/8" Black Tubing, 50 feet

    Hydrologic's reverse osmosis filter tubing in black. Sold in lengths of 50 feet with an outer dimension of 3/8". Extra tubing can be useful for customizing your indoor hydroponic water filtration system.
    $14.50
    $19.33
  • Hydrologic Polyethylene Tubing, 50', Blue, 1/4"
    Hydrologic

    1/4" Blue Tubing, 50 feet

    Hydrologic's reverse osmosis filter tubing in blue. Comes in lengths of 50 feet with an outer dimension of 1/4 inch. Extra tubing can be useful for customizing your indoor hydroponic water filtration system.
    $8.01
    $14.58
  • Hydrologic Polyethylene Tubing, 25', White, 1/2"
    Hydrologic

    1/2" White Tubing, 25 feet

    Hydrologic's reverse osmosis filter tubing in white. Sold in lengths of 25 feet with an outer dimension of 1/2" and an inner dimension of 3/8". Extra tubing can be useful for customizing your indoor hydroponic water filtration system. Also available in...
    $9.54
    $16.95
  • HydroLogic Small Boy Replacement Filter Housing, 1/4"
    Hydrologic

    SPO Small Boy filter housing w/white cap - 1/4"

    Occasionally filter housings crack from mishandling, cold temperatures, excessive inlet pressure, pressure spikes or water hammer. Should this happen to you, get the most life from your HydroLogic smallBoy filter with this OEM replacement housing.
    $6.40
    $29.95
  • Hydrologic Pre-Evolution KDF/Catalytic Carbon Filter 10
    Hydrologic

    Pre-Evolution KDF/Catalytic Carbon Filter 10

    Standard carbon pre-filter included with the Evolution system. For high-capacity chlorine and chloramine reduction in city water. Also for the reduction of iron, hydrogen sulphide and heavy metals in well water.
    $73.46
    $97.95
  • Hydrologic Inline Shut Off Valve, 3/8" QC x 3/8" QC
    Hydrologic

    3/8" QC x 3/8" QC inline shut off valve

    Use the Hydrologic reverse osmosis water filter 3/8" ball valve inline shut-off to customize your indoor hydroponic garden water purification system.
    $5.31
    $7.08
  • Active Aqua 20" Polyblown Sediment Filter
    Active Aqua

    Active Aqua 20" Polyblown Sediment Filter

    Super fine weaved filter removes smaller sediments from water without premature clogging. Use for first stage replacement on most standard RO systems. Ultra high capacity removes 90% of sediment.
    $5.31
    $12.95