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Hydrologic

1/2 inch Natural tubing, 250 feet per roll

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Hydrologic

Customize your indoor hydroponic garden water filtration system with Hydrologic's 1/2" natural-colored tubing. Comes in 250 foot roll.

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Hydrologic

1/2" QC x 1/2" QC union straight

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Hydrologic

Use the Hydrologic reverse osmosis water filter 1/2" union connector to customize your indoor hydroponic garden water purification system.

$5.95$6.559% off
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1/2" QC x 1/2" QC union straight

$5.95$6.559% off
$5.95 $6.55 10% off

1/2" QC x 1/2" QC union straight

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1/2" White Tubing, 25 feet

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Hydrologic

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 use...

$16.95$18.659% off
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Hydrologic

1/2" White Tubing, 25 feet

$16.95$18.659% off
$16.95 $18.65 10% off

1/2" White Tubing, 25 feet

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1/4" Black Tubing, 50 Feet

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Hydrologic

Hydrologic's reverse osmosis filter tubing in black. Sold in lengths of 50 feet with an outer dimension of 1/4 inch. Extra tubing can be useful for customizing your in...

$13.95$15.359% off
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Hydrologic

1/4" Black Tubing, 50 Feet

$13.95$15.359% off
$13.95 $15.35 10% off

1/4" Black Tubing, 50 Feet

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1/4" Blue HydroLogic Tubing 500'

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Hydrologic

Hydrologic's 1/4" blue tubing. Comes in a 500 foot roll. For use in customizing your indoor hydroponic garden with the Stealth RO and Small Boy reverse osmosis water f...

$115.95$127.559% off
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Hydrologic

1/4" Blue HydroLogic Tubing 500'

$115.95$127.559% off
$115.95 $127.55 10% off

1/4" Blue HydroLogic Tubing 500'

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Hydrologic

1/4" Blue Tubing, 50 feet

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Hydrologic

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 i...

$14.58$16.049% off
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Hydrologic

1/4" Blue Tubing, 50 feet

$14.58$16.049% off
$14.58 $16.04 10% off

1/4" Blue Tubing, 50 feet

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1/4" Flowmaster Ultra Low Flow Model

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Hydrologic

Flowmaster - 1/4" QC - gallonage & filter capacity monitor. Operates at flow rates between 0.01-0.5 GPM. Ultra low-flow model. Alerts you when it's time to change ...

$64.95$71.459% off
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Hydrologic

1/4" Flowmaster Ultra Low Flow Model

$64.95$71.459% off
$64.95 $71.45 10% off

1/4" Flowmaster Ultra Low Flow Model

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1/4" QC 2-Way Splitter

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Hydrologic

1/4" QC 2-Way Splitter - "y" splitter for multiple reservoirs.

$5.95$6.559% off
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Hydrologic

1/4" QC 2-Way Splitter

$5.95$6.559% off
$5.95 $6.55 10% off

1/4" QC 2-Way Splitter

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Hydrologic

1/4" QC x 1/4" MNPT - Straight

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Hydrologic

1/4" QC x 1/4" MNPT - straight: included with Small Boy for inlet and outlet.

$4.95$5.459% off
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Hydrologic

1/4" QC x 1/4" MNPT - Straight

$4.95$5.459% off
$4.95 $5.45 10% off

1/4" QC x 1/4" MNPT - Straight

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1/4" QC x 1/4" QC Inline Shut Off Valve

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Hydrologic

Use the Hydrologic reverse osmosis water filter 1/4" ball valve inline shutoff to customize your indoor hydroponic garden water purification system.

$6.07$6.689% off
$6.07 $6.68 10% off

1/4" QC x 1/4" QC Inline Shut Off Valve

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2.5 Replacement Wrench for Std Housing

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Hydrologic

2.5 inch replacement wrench for standard housing on the Hydrologic Reverse Osmosis Water filtration systems.

$4.95$5.459% off
$4.95 $5.45 10% off

2.5 Replacement Wrench for Std Housing

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3/8" Black Tubing, 50 feet

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Hydrologic

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...

$19.33$21.269% off
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Hydrologic

3/8" Black Tubing, 50 feet

$19.33$21.269% off
$19.33 $21.26 10% off

3/8" Black Tubing, 50 feet

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3/8" Blue HydroLogic Tubing 500'

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Hydrologic

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

$164.95$181.459% off
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Hydrologic

3/8" Blue HydroLogic Tubing 500'

$164.95$181.459% off
$164.95 $181.45 10% off

3/8" Blue HydroLogic Tubing 500'

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3/8" Drain Saddle, QC for 1" to 1.5"

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Hydrologic

The black drain line of your RO system can be connected to the main drain under your sink for a clean intall. This saddle mounts around a 1" to 1-1/2" pipe and comes w...

$10.95$12.059% off
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Hydrologic

3/8" Drain Saddle, QC for 1" to 1.5"

$10.95$12.059% off
$10.95 $12.05 10% off

3/8" Drain Saddle, QC for 1" to 1.5"

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Hydrologic

3/8" Pump Protector & Inlet Filter

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Hydrologic

Protects booster pump from sediment and other particles. Cleanable stainless steel mesh screen. Clear housing. 3/8" fittings included to hook directly onto inlet of pu...

$21.95$24.159% off
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Hydrologic

3/8" Pump Protector & Inlet Filter

$21.95$24.159% off
$21.95 $24.15 10% off

3/8" Pump Protector & Inlet Filter

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3/8" QC 3-Way Splitter

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Hydrologic

Use the Hydrologic reverse osmosis water filter 3/8" 3-way divider to customize your indoor hydroponic garden water purification system.

$12.95$14.259% off
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Hydrologic

3/8" QC 3-Way Splitter

$12.95$14.259% off
$12.95 $14.25 10% off

3/8" QC 3-Way Splitter

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Hydrologic

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

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Hydrologic

Use the Hydrologic reverse osmosis water filter 3/8" ball valve inline shut-off to customize your indoor hydroponic garden water purification system.

$7.08$7.799% off
$7.08 $7.79 10% off

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

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Hydrologic

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Hydrologic

3/8" QC x 3/8" x3 /8" Comp Thread Feed ValveTee

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Hydrologic

Use the Hydrologic reverse osmosis water filter Hydrologic Reverse Osmosis Water Filter 1/4" QC x 3/8" comp. thread tee feed valve to customize your indoor hydroponic ...

$9.95$10.959% off
$9.95 $10.95 10% off

3/8" QC x 3/8" x3 /8" Comp Thread Feed ValveTee

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Hydrologic

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Hydrologic

3/8" Tubing, 50 feet, Blue

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Hydrologic

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 ...

$19.33$21.269% off
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Hydrologic

3/8" Tubing, 50 feet, Blue

$19.33$21.269% off
$19.33 $21.26 10% off

3/8" Tubing, 50 feet, Blue

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Hydrologic

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Hydrologic

3/8" White HydroLogic Tubing 500'

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Hydrologic

Customize your indoor hydroponic garden with Hydro-Logic's 3/8" white tubing for water filtration systems. Comes in a 500 foot roll.

$164.95$181.459% off
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Hydrologic

3/8" White HydroLogic Tubing 500'

$164.95$181.459% off
$164.95 $181.45 10% off

3/8" White HydroLogic Tubing 500'

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Hydrologic

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Hydrologic

Add On De-Ionization Kit for Evolution-RO 1000 - 4.5"x1

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Hydrologic

A post polishing de-ionization filter that removes any remaining PPM down to zero.

$219.95$241.959% off
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Hydrologic

Add On Kit - De-Ionization for micRO 75 - 2"x10"

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Hydrologic

micRO-75 Add-on DI Filter Cartridge Kit This de-ionization filter is designed to serve as a post, polishing stage for any Reverse Osmosis system. After an RO system, ...

$43.95$48.359% off
$43.95 $48.35 10% off

Add On Kit - De-Ionization for micRO 75 - 2"x10"

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Algae block Clear filter housing sleeve

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Hydrologic

Use the Hydrologic reverse osmosis water filter Algae Block clear filter housing sleeve to customize your indoor hydroponic garden.

$14.95$16.459% off
$14.95 $16.45 10% off

Algae block Clear filter housing sleeve

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Big Boy 20" Filter Housing

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Hydrologic

Big Boy - 20" x 4.5" filter housing - grey/black cap - 1" ports

$103.95$114.359% off
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Hydrologic

Big Boy 20" Filter Housing

$103.95$114.359% off
$103.95 $114.35 10% off

Big Boy 20" Filter Housing

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Big Boy Carbon Filter

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Hydrologic

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...

$84.62$93.089% off
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Hydrologic

Big Boy Carbon Filter

$84.62$93.089% off
$84.62 $93.08 10% off

Big Boy Carbon Filter

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Big Boy Extra High Flow 420 GPH

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Hydrologic

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...

$469.15$516.079% off
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Hydrologic

Big Boy Extra High Flow 420 GPH

$469.15$516.079% off
$469.15 $516.07 10% off

Big Boy Extra High Flow 420 GPH

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Big Boy Garden Hose Connection Kit

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Hydrologic

Use the Hydrologic reverse osmosis water filter Big Boy garden hose connection kit to customize your indoor hydroponic garden water purification system.

$20.35$22.399% off
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Hydrologic

Big Boy Garden Hose Connection Kit

$20.35$22.399% off
$20.35 $22.39 10% off

Big Boy Garden Hose Connection Kit

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Big Boy KDF85 Carbon Filter

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Hydrologic

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.

$143.77$158.159% off
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Hydrologic

Big Boy KDF85 Carbon Filter

$143.77$158.159% off
$143.77 $158.15 10% off

Big Boy KDF85 Carbon Filter

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Big Boy Pleated Cleanable Sediment FIlter

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Hydrologic

Keep your water fresh, your equipment in tip-top shape, and your grow room at its best. This ultra-high capacity cleanable sediment filter removes 90% of sediment. Fil...

$62.17$68.399% off
$62.17 $68.39 10% off

Big Boy Pleated Cleanable Sediment FIlter

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Big Boy UV Sterilizer Mounting

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Hydrologic

UV Sterilizer Kit - Big Boy - 8 GPM with ballast and wall mounting clips.

$45.00$49.509% off
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Big Boy UV Sterilizer Mounting

$45.00$49.509% off
$45.00 $49.50 10% off

Big Boy UV Sterilizer Mounting

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Big Boy w/ Upgraded KDF85/Catalytic Carbon Filter

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Hydrologic

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 f...

$539.95$593.959% off
$539.95 $593.95 10% off

Big Boy w/ Upgraded KDF85/Catalytic Carbon Filter

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Carbon Filter for Tall Boy and Tall Blue

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Hydrologic

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 u...

$84.62$93.089% off
$84.62 $93.08 10% off

Carbon Filter for Tall Boy and Tall Blue

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De-Ionization Cartridge color changing

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De-Ionization Cartridge (Big): 10" X 4.5"- Color changing- Transluscent housing  

$89.95$98.959% off
$89.95 $98.95 10% off

De-Ionization Cartridge color changing

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DM-2 Industrial Dual TDS Monitor

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Hydrologic

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 membran...

$82.95$91.259% off
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DM-2 Industrial Dual TDS Monitor

$82.95$91.259% off
$82.95 $91.25 10% off

DM-2 Industrial Dual TDS Monitor

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Eco-Spring Post Remineralization/Carbon Filter

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Hydrologic

EcoSpring Post Remineralization/Carbon Filter: standard post remineralization filter cartridge included with system. Adds calcium for flavor and health benefits.

$29.00$31.909% off
$29.00 $31.90 10% off

Eco-Spring Post Remineralization/Carbon Filter

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Evolution RO 1:1 Ratio flow restrictor elbow

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Hydrologic

Use the Hydrologic reverse osmosis water filter Evolution RO1000 1:1 ratio orange drain elbow 3/8" QC to customize your indoor hydroponic garden.

$21.37$23.519% off
$21.37 $23.51 10% off

Evolution RO 1:1 Ratio flow restrictor elbow

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Evolution-RO High Flow RO System, GPD

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Capable of producing more than 1,000 GPD or 42 gallons per hour of pure water.Remove 94%+ of all Parts Per Million from your tap water.Includes two RO membranes (HL220...

$924.95$1,017.459% off
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Evolution-RO High Flow RO System, GPD

$924.95$1,017.459% off
$924.95 $1,017.45 10% off

Evolution-RO High Flow RO System, GPD

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Evolution-RO RO Membrane Element

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Standard membrane included with system. Two are needed for Evolution system.

$209.95$230.959% off
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Evolution-RO RO Membrane Element

$209.95$230.959% off
$209.95 $230.95 10% off

Evolution-RO RO Membrane Element

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Evolution-RO Wall Mount Bracket

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Hydrologic

Wall mount bracket designed for the Hydrologic Evolution RO1000 water filtration system. Stainless steel, heavy duty.

$83.58$91.949% off
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Evolution-RO Wall Mount Bracket

$83.58$91.949% off
$83.58 $91.94 10% off

Evolution-RO Wall Mount Bracket

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Evolution-RO1000 KDF/Catalytic Carbon Pre-filter

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Hydrologic

Standard carbon pre-filter included with the Evolution system. For chlorine and chloramines reduction in city water. Also for the reduction of iron, hydrogen and heavy...

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Hydrologic

Filter Canister For Evolution RO

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Hydrologic

Replacement filter housing in case of cracking due to mishandling, cold temperatures, excessive inlet pressure, pressure spikes or water hammer. .

$59.95$65.959% off
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Hydrologic

Filter Canister For Evolution RO

$59.95$65.959% off
$59.95 $65.95 10% off

Filter Canister For Evolution RO

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Float Kit for the Merlin Garden Pro

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Hydrologic

Float Kit for the Merlin Garden Pro High-Flow Reverse Osmosis System. Helps to adjust water levels in the water filtration system.

$42.00$46.209% off
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Hydrologic

Float Kit for the Merlin Garden Pro

$42.00$46.209% off
$42.00 $46.20 10% off

Float Kit for the Merlin Garden Pro

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Float Valve 1/4"

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Hydrologic

Float Valve, 1/4", works to maintain proper water levels in your Hydrologic water filtration system. 

$21.37$23.519% off
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Hydrologic

Float Valve 1/4"

$21.37$23.519% off
$21.37 $23.51 10% off

Float Valve 1/4"

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Float Valve 20+ GPM for Big Boy

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Hydrologic

Use the Hydrologic reverse osmosis water filter Float Valve 20+ GPM for Big Boy or Delivery Pump to customize your indoor hydroponic garden.

$75.43$82.979% off
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Hydrologic

Float Valve 20+ GPM for Big Boy

$75.43$82.979% off
$75.43 $82.97 10% off

Float Valve 20+ GPM for Big Boy

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Float Valve 3/8"

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Hydrologic

Float Valve, 3/8", helps to maintain proper water levels in your Hydrologic water filtration system.

$21.37$23.519% off
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Hydrologic

Float Valve 3/8"

$21.37$23.519% off
$21.37 $23.51 10% off

Float Valve 3/8"

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

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Hydrologic

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 horiz...

$21.37$23.519% off
$21.37 $23.51 10% off

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

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Hydrologic

Flowmaster gal Meter

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Hydrologic

The Flowmaster by Hydrologic measures how many gallons of filtered water have gone through the your grow system and alerts you when it's time to change filters. You ca...

$64.95$71.459% off
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Hydrologic

Flowmaster gal Meter

$64.95$71.459% off
$64.95 $71.45 10% off

Flowmaster gal Meter

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Hydrologic

GroGreen Garden Hose Water Filter

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Hydrologic

Compact garden hose filter. Eco-friendly green coconut carbon and KDF55 medias. Includes "filter saver" brass hose bib connector. Customized flow restrictor allows ide...

$59.95$65.959% off
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Hydrologic

GroGreen Garden Hose Water Filter

$59.95$65.959% off
$59.95 $65.95 10% off

GroGreen Garden Hose Water Filter

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Hydro-Logic ARCS Heavy Metal Reduction Cartridge

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Hydro-Logic ARCS Heavy Metal Reduction Cartridge Replacement Cartridge, copper/zinc ACRS-COPZIN