Water Filtration & Treatment

National Hydro Group is your online source for Water Filtration & Treatment. If you cant find the Water Filtration & Treatment that meet your needs please give us a ring or send a quick email so we can help you find exactly what you're looking for.
Tall Boy and Tall Blue Sediment Filter-NWGSupply.com
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$14.00
$12.00

Tall Boy and Tall Blue Sediment Filter

HydroLogic

Gardeners can keep their Tall Boy De-Chlorinator performing like new with a replacement Tall Boy Sediment Filter. It’s the same 20" filter packaged...

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$14.00
$12.00
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Tall Boy and Tall Blue Green Carbon Filter-NWGSupply.com
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$31.00
$25.20

Tall Boy and Tall Blue Green Carbon Filter

HydroLogic

Gardeners can keep their Tall Boy De-Chlorinator performing like new with a replacement Tall Boy Carbon Filter. It’s the same 20" filter packaged w...

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$31.00
$25.20
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Hydro-Logic Float Valve with 1/4" Quick Connect-NWGSupply.com
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$19.00
$16.50

Hydro-Logic Float Valve with 1/4" Quick Connect

HydroLogic

This Hydro-Logic Float Valve features a quick-connect fitting which allows it to connect to Stealth, Small Boy, or any water filtration system usin...

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$19.00
$16.50
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Siphon Mixer-NWGSupply.com
$17.50

Siphon Mixer

GrowMore

The easy-to-use Siphon Mixer is a great way to apply concentrated water-soluble fertilizers, fungicides, and insecticides through a garden hose. Th...

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$17.50
Hydrologic Blue Tubing, 3/8", 500' roll-NWGSupply.com
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$155.00
$109.24

Hydrologic Blue Tubing, 3/8", 500' roll

HydroLogic

Customize your indoor hydroponic Hydrologic reverse osmosis water filtration system with 3/8" blue tubing. Comes in a 500 foot roll.

$155.00
$109.24
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GoGreen Garden Hose Water Filter-NWGSupply.com
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$55.00
$46.13

GoGreen Garden Hose Water Filter

HydroLogic

For pure water straight from the hose, there’s the GoGreen Garden Hose Water Filter. GoGreen uses environmentally friendly green coconut carbon and...

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$55.00
$46.13
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Float Valve, 1/2" Barb, Adjustable Water Level-NWGSupply.com
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$19.00
$16.50

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

Hydro-Logic

1/2" barbed connection. Adjustable water level and can be mounted horizontally or vertically.

$19.00
$16.50
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Hydro-logic Pressure Booster Pump for Stealth-NWGSupply.com
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$214.95
$179.79

Hydro-logic Pressure Booster Pump for Stealth

Hydro-Logic

This pump is designed to be installed before the Stealth RO to boost the inlet pressure. There needs to be at least 40 psi and up to 80 psi of inle...

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$214.95
$179.79
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Evolution Reverse Osmosis 1000 System-NWGSupply.com
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$849.95
$655.32

Evolution Reverse Osmosis 1000 System

HydroLogic

The Evolution-RO1000 reverse osmosis system is the future of reverse osmosis, capable of 1,000 gallons per day/42 gallons per hour flow rate at an ...

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$849.95
$655.32
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Stealth Reverse Osmosis and Small Boy KDF85 Carbon Filter-NWGSupply.com
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$39.00
$35.00

Stealth Reverse Osmosis and Small Boy KDF85 Carbon Filter

HydroLogic

This 10" KDF85 Carbon Filter augments Hydro-Logic’s Stealth RO System by greatly increasing its ability to filter chlorine, chloramines, iron, hydr...

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$39.00
$35.00
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Stealth/Small Boy Carbon Replacemnt Filter-NWGSupply.com
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$16.50
$14.25

Stealth/Small Boy Carbon Replacemnt Filter

Hydro-Logic

Replacement green carbon filter for stealth reverse osmosis filtration system

$16.50
$14.25
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Hydro-Logic Blue Tubing 3/8", 50'-NWGSupply.com
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$17.00
$16.50

Hydro-Logic Blue Tubing 3/8", 50'

HydroLogic

Replace worn out tubing or extend existing Hydro-Logic reverse osmosis water purification systems with Hydro-Logic Blue Tubing. Product has a diame...

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$17.00
$16.50
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Stealth RO100/200 Pressure Gauge/Fitting Assembly-NWGSupply.com
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$17.50
$15.75

Stealth RO100/200 Pressure Gauge/Fitting Assembly

Hydro-Logic

Stealth RO100/200 pressure gauge/fitting assembly

$17.50
$15.75
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Male x Male Adapter For Supply Diverter Valve For Fauce-NWGSupply.com
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$7.89
$3.20

Male x Male Adapter For Supply Diverter Valve For Fauce

Hydro-Logic

Allows ¼" and 3/8" faucet diverters to connect to faucets with 15/16" - 27 female threads. Male 13/16" - 27 thread x Male 15/16" - 27 thread.

$7.89
$3.20
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Hydrologic Big Boy UV Sterilizer Kit-NWGSupply.com
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$489.00
$389.74

Hydrologic Big Boy UV Sterilizer Kit

Hydro-Logic

UV Sterilizer Kit - Big Boy

$489.00
$389.74
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Filter Canister For Evolution RO1000-NWGSupply.com
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$56.00
$47.60

Filter Canister For Evolution RO1000

Hydro-Logic

This is a replacement canister for the Merlin Garden Pro.

$56.00
$47.60
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Growonix Electric Shut Off Kit-NWGSupply.com
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$231.00
$196.39

Growonix Electric Shut Off Kit

GrowoniX

An essential add-on to almost any water filter! Shuts down feed water before the water filter. Controls on/off cycling of high pressure booster pum...

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$231.00
$196.39
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Stealth RO 100 & 200 Booster Pump-NWGSupply.com
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$209.95
$179.92

Stealth RO 100 & 200 Booster Pump

Hydro-Logic

The Stealth Pressure Booster Pump increases the flow and efficiency of the Stealth RO-100 water filtration system, boosting inlet pressure to 70 ps...

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$209.95
$179.92
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Hydro-Logic Stealth-RO150 Reverse Osmosis Filter-NWGSupply.com
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$225.00
$187.71
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Hydro-logic Stealth RO 300-NWGSupply.com
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$315.00
$250.74

Hydro-logic Stealth RO 300

Hydro-Logic

Removes 98%+ of all contaminants in your tap water. Leading the industry in efficiency the Stealth has a 2:1 waste to product water ratio. Optional...

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$315.00
$250.74
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Active Aqua 200 Reverse Osmosis System-NWGSupply.com
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$249.95
$209.10

Active Aqua 200 Reverse Osmosis System

Active Aqua

This 3-stage reverse osmosis unit is ideal for fresh water applications, drinking and more. Comes with 1-micron sediment filtration, a carbon block...

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$249.95
$209.10
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Active Aqua 100 Reverse Osmosis System-NWGSupply.com
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$184.95
$158.03

Active Aqua 100 Reverse Osmosis System

Active Aqua

This 3-stage reverse osmosis unit is ideal for fresh water applications, drinking and more. Comes with 1-micron sediment filtration, a carbon block...

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$184.95
$158.03
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Stealth Reverse Osmosis Membrane Element 100 GPD-NWGSupply.com
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$83.00
$68.60

Stealth Reverse Osmosis Membrane Element 100 GPD

HydroLogic

This Reverse Osmosis Membrane replaces the one that comes packaged with the Hydro-Logic Stealth RO100 and RO200 reverse osmosis water filtration sy...

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$83.00
$68.60
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