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Hydroponic Systems, Equipment and Testing

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General Hydroponics Rubber Grommet 1"

1" grommet for laser spray line used in AeroFlo2 system.

Rubber Grommet 1"

$1.51

Round Disk Air Stone 8 in

A Deluxe Bubble Disk is a great way to properly aerate your reservoir. It creates a circle of bubbles to keep you reservoir healthy and loaded with oxygen. The perfect solution for small reservoirs.  Available in 5" and 8". 

Round Disk Air Stone 8 in

$29.15

Barbed Elbow 1/4" - Single

Use our 1/4" fittings to design and build your custom irrigation system.

Barbed Elbow 1/4" - Single

$0.39

Barbed Elbow 1/2" - Single

Use our 1/2" fittings to design and build your custom irrigation system.

Barbed Elbow 1/2" - Single

$0.68

Small Round Air Stone - 3/16" ID

When powered by a high-output air pump, this large (13⁄8" x 15⁄8" tall ) air stone continuously releases thousands of bubbles to adequately aerate most large hydroponic reservoirs. Increased oxygen in the nutrient solution prevents root rot, encourages nu

Small Round Air Stone - 3/16" ID

$3.49

Ebb & Flow Fitting Riser Extension

Add an additional riser adapter to increase the overflow height 1 5/8"

Ebb & Flow Fitting Riser Extension

$0.79

Ebb & Flow Outlet 1/2" - 13 mm

1/2" barb for inlet or outlet of Ebb & Flow fittings, accepts 3/4" mpt pvc.

Ebb & Flow Outlet 1/2" - 13 mm

$2.00

Netafim Angle Barbed Stake Woodpecker - Single

The Angle Barbed Stake has a unique flow channel down the length of the stake directing the water into the container. It also has a pointed end for easy container insertion. For use with Super Flex UV Whiteâ„¢ PE Tubing.

Netafim Angle Barbed Stake Woodpecker - Single

$0.29

Hydro-Logic Stealth RO Sediment Filter - Pleated/Cleanable

Sediment Filters are high efficiency depth gradient density filter cartridges with almost absolute micron ratings. They are strongly recommended for areas with extremely high sediment levels like NY, WA, ND, NC and IL etc. The gradient pore structure of t

Hydro-Logic Stealth RO Sediment Filter - Pleated/Cleanable

$21.99

Hydro Flow Barbed Straight Connector 1/4" - Single

Use these high quality barbed 3/16 in connectors for your irrigation systems or hydroponic systems. Feature 3 barbs for a tight fit. Bump stop assures fittings are completely and securely inserted in tubing. Made with 100% virgin plastic.

Barbed Straight Connector 1/4" - Single

$0.26

HM Digital Meter HM Digital pH 80

Measures pH and Temperature
One-touch automatic digital calibration
Water resistant

Meter HM Digital pH 80

$49.29

Bluelab Meter Bluelab pH Pen

Hydroponic growing lets you give the best care possible to your plants. The quality of care is in your control.
The Bluelab pH Pen provides a compact, quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients.

Meter Bluelab pH Pen

$126.14

Hydro-Logic Stealth/Small Boy KDF85/Catalytic Carbon Upgrade Filter

Replacement carbon filter for Hydro-Logic Stealth reverse-osmosis filtration systems.

Hydro-Logic Stealth/Small Boy KDF85/Catalytic Carbon Upgrade Filter

$50.95

Calibration Solution PH4 - 8 Oz

A meter is only as good as the calibration. General Hydroponics Standard Reference Solution is available in pH 4.01 (pink) and 7.01 (green). Solution should not be reused. Pour a small quantity from bottle, calibrate meter, and dispose of used solution. P

Calibration Solution PH4 - 8 Oz

$9.03

Hydro-Logic Hydro-Logic Stealth/Small Boy Float Valve

This float valve has a 1/4" quick-connect fitting and adjustable water level. It can be mounted vertically or horizontally. It works great for the Stealth RO and Small Boy or any other filter system with 1/4" tubing. Use plumber's tape on threads.

Hydro-Logic Stealth/Small Boy Float Valve

$28.99

Bluelab Bluelab pH 4.0 Calibration Solution 250 ml

"pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope).Calibration Solution should be stored in a cool place out

Bluelab pH 4.0 Calibration Solution 250 ml

$13.99

General Hydroponics GH pH Up - qt

For plants to grow their best it's important that the nutrient pH be slightly acidic - the range of 5.5 to 6.5 is considered ideal for most crops. The General Hydroponics pH Up (Base) is formulated using Potassium Hydroxide and Potassium Carbonate which a

$15.68

General Hydroponics GH pH Up - gal

For plants to grow their best it's important that the nutrient pH be slightly acidic - the range of 5.5 to 6.5 is considered ideal for most crops. The General Hydroponics pH Up (Base) is formulated using Potassium Hydroxide and Potassium Carbonate which a

$39.06

General Hydroponics GH pH Down - Gal

The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.

GH pH Down - Gal

$39.06

Tubing Black Soft Line 1/2" - 100' Roll

Our tubing is UV stabilized for long life when exposed to sunlight. Black tubing is recommended for use in water gardening because it practically disappears underwater, and since sunlight does not penetrate it, algae growth inside the tubing is inhibited.

Tubing Black Soft Line 1/2" - 100' Roll

$48.25

Barbed Tee Fitting 3/4" - Single

Use our 3/4" fittings to design and build your custom irrigation system.

Barbed Tee Fitting 3/4" - Single

$1.49

Barbed Tee Fitting 1/4" - single

Use our 1/4" fittings to design and build your custom irrigation system.

Barbed Tee Fitting 1/4" - single

$0.50

Barbed Tee Fitting 1/2" - Single

Use our 1/2" fittings to design and build your custom irrigation system.

Barbed Tee Fitting 1/2" - Single

$0.66

Swivel Adapter 1/2" Compression to 3/4" Female Pipe Thread

The 1/2" female pipe thread splits to accept 2 - 1/2" irrigation lines. Simply push the 1/2" irrigation line into the water-tight slip fittings. The Swivel T can be used with the Israeli Filter.

Swivel Adapter 1/2" Compression to 3/4" Female Pipe Thread

$2.09