PH & PPM Meters

Bluelab pH Pen
Save $11.25
$112.50
$101.25

Bluelab - pH Pen

Bluelab

Measures pH and temperature. Selectable units for °C & °F. Backlit LCD display. Double junction probe (not replaceable). Successful calibration...

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$112.50
$101.25
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Milwaukee pH Meter pH600 AQ
Save $3.40
$33.95
$30.55

Milwaukee - pH Meter pH600 AQ

Milwaukee

Milwaukee's most affordable pH tester, range: 0.0 to 14.0 pH, with one point manual calibration, and accuracy of ±0.2 pH. Battery Life: 700 hours. ...

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$33.95
$30.55
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Mondi Mini Greenhouse Thermo-Hygrometer
Save $2.05
$16.95
$14.90

Mondi Mini Greenhouse Thermo-Hygrometer

Mondi

Ensure the perfect temperature and humidity for plants through all growing stages with the Mondi Mini Greenhouse Thermo-Hygrometer. The thermo-hygr...

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$16.95
$14.90
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1/2" Inside Diameter Black Tubing, 25' Roll
Save $0.84
$12.59
$11.75

1/2" Inside Diameter Black Tubing, 25' Roll

Active Aqua

Use our sturdy black vinyl tubing, which is FDA-approved and BPA-free, for your irrigation systems and tanks, and to complete your own hydroponic ...

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$12.59
$11.75
Save $0.84
Gardin - pH Meter
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$22.00
$19.99

Gardin - pH Meter

Gardin

The Gardin pH meter. Easy to calibrate and even easier to use. One point calibration to 7.0 and your ready to start reading your reservoirs pH.

$22.00
$19.99
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Bluelab Conductivity Pen
Save $9.40
$94.00
$84.60

Bluelab - Conductivity Pen

Bluelab

Measures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful ...

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$94.00
$84.60
Save $9.40
Save $2.40
$23.95
$21.55
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Nectar for the Gods Demeter's Destiny, qt
Save $2.00
$20.00
$18.00

Nectar for the Gods Demeter's Destiny, qt

Nectar for the Gods

Derived from calcium phosphate, Demeter’s Destiny promotes plant sugars and fruit flavor, reduces blossom end rot, promotes vigorous plant growth ...

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$20.00
$18.00
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Hydrofarm - Precision Pruner and Scissor Sharpener
Save $1.20
$11.99
$10.79

Hydrofarm - Precision Pruner and Scissor Sharpener

Hydrofarm

The Precision Blade Sharpener quickly sharpens your Hydrofarm Precision Pruners and all similarly-sized pruners to original sharpness with a few ea...

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$11.99
$10.79
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Active Air Indoor-Outdoor Thermometer w/Hygrometer
Save $2.00
$19.95
$17.95

Active Air Indoor-Outdoor Thermometer w/Hygrometer

Active Air

Active Air's indoor-outdoor thermometer gives you more. Made of sturdy materials to stand up to the climate of your indoor grow room, this essenti...

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$19.95
$17.95
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Luster Leaf Rapitest Digital Moisture Meter
Save $1.30
$12.99
$11.69

Luster Leaf Rapitest Digital Moisture Meter

Luster Leaf

The Rapitest® Digital Moisture Meter tests for moisture at the roots - where it matters - you no longer risk over watering a healthy plant just bec...

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$12.99
$11.69
Save $1.30
Quantum PAR Meter
Save $16.50
$164.95
$148.45

Quantum PAR Meter

Active Eye

QUANTUM PAR METER Fully portable handheld PAR meter features our highly accurate, integrated Quantum Sensor that measures PAR (Photosynthetically A...

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$164.95
$148.45
Save $16.50
Bond 3 Way Soil Meter
Save $0.99
$9.95
$8.96

Bond - 3 Way Soil Meter

Bond

Measures moisture content of soil. Lets you know to water. Helps you determine if plant is getting adequate light. Helps you control pH level in so...

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$9.95
$8.96
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Grower's Edge Dry Rack Enclosed w/ Zipper Opening - 2 ft
Save $3.79
$37.95
$34.16

Grower's Edge Dry Rack Enclosed w/ Zipper Opening - 2 ft

Growers Edge

Use to easily dry flowers and herbs. Zipper allows for each level to be completely enclosed. Gently maneuver, shake and flip without losing content...

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$37.95
$34.16
Save $3.79
P3 International - Save a Drop Water Meter
Save $2.00
$19.95
$17.95

P3 International - Save a Drop Water Meter

Hydrofarm

It is widely accepted that talking to your plants is great for their health. If they could speak to you, what would they say? Probably that they'r...

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$19.95
$17.95
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Phantom, 120V-208V-220V-240V DE Open Lighting System with USB Interface
Save $38.00
$383.99
$345.99

Phantom, 120V-208V-220V-240V DE Open Lighting System with USB Interface

Phantom DE

Performance, Quality & Reliability: Introducing The Commercial DE Open Lighting System The Commercial DE Open Lighting System features state-of...

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$383.99
$345.99
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MagicalButter DecarBox / Thermometer Combo
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$34.95
$31.45

MagicalButter DecarBox / Thermometer Combo

Harvest Solutions

The DecarBox features an integrated digital probe thermometer. This device lets you easily calibrate your oven for precise accuracy during decarbox...

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$34.95
$31.45
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Nectar for the Gods Demeter's Destiny, gal
Save $6.00
$60.00
$54.00

Nectar for the Gods Demeter's Destiny, gal

Nectar for the Gods

Derived from calcium phosphate, Demeter’s Destiny promotes plant sugars and fruit flavor, reduces blossom end rot, promotes vigorous plant growth a...

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$60.00
$54.00
Save $6.00
Rapitest Digital Soil pH Meter
Save $1.50
$14.99
$13.49

Rapitest Digital Soil pH Meter

Luster Leaf

Plants need the correct pH level which controls how well plants utilize the nutrients available in your soil. All plants have a pH preference, so i...

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$14.99
$13.49
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Phantom - 50 Series, 1000W, 120V/240V DE Open Lighting System with USB Interface
Save $42.00
$416.99
$374.99

Phantom - 50 Series, 1000W, 120V/240V DE Open Lighting System with USB Interface

Hydrofarm

The Commercial DE Open Lighting System features state-of-the-art double-ended technology that uniformly delivers optimum PAR value over a broad fo...

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$416.99
$374.99
Save $42.00
Active Aqua - Floating Thermometer
Save $0.21
$2.09
$1.88

Active Aqua - Floating Thermometer

Active Aqua

The Active Aqua floating thermometer delivers easy and accurate readings of your water temperature. This gauge floats and has a pressure sensitive...

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$2.09
$1.88
Save $0.21
Gardena Smart Flow Water Meter
Save $5.00
$49.99
$44.99

Gardena - Smart Flow Water Meter

Gardena

The Gardena Smart Flow Water Meter measures water usage daily, monthly, by season, or yearly. The LCD screen clearly displays information with meas...

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$49.99
$44.99
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Fiskars Universal Scissors Sharpener
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$13.95
$12.55
Save $1.40
Bluelab Combo Meter
Save $29.90
$299.00
$269.10

Bluelab - Combo Meter

Bluelab

The Bluelab® Combo Meter is a conductivity, pH and temperature meter all in one. As the Bluelab® Combo Meter is portable and does not require a pow...

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$299.00
$269.10
Save $29.90
ARS Sharpening Stone
Save $1.50
$14.99
$13.49

ARS - Sharpening Stone

ARS

The AC-SS240 is a sharpening stone designed by ARS. Made of hard stone, this stone is ideally shaped for pruners, scissors and hedge shears. It is ...

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$14.99
$13.49
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Grower's Edge Dry Rack Enclosed w/ Zipper Opening - 3 ft
Save $5.99
$59.95
$53.96

Grower's Edge Dry Rack Enclosed w/ Zipper Opening - 3 ft

Growers Edge

Use to easily dry flowers and herbs. Zipper allows for each level to be completely enclosed. Gently maneuver, shake and flip without losing content...

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$59.95
$53.96
Save $5.99
SG 1000W HPS Open Ballast, 120/240V
Save $12.49
$124.95
$112.46

SG 1000W HPS Open Ballast, 120/240V

Hydrofarm

$124.95
$112.46
Save $12.49
GH 1/4" Outer Diameter Air Line, 100' Roll
Save $1.60
$16.00
$14.40

GH - 1/4" Outer Diameter Air Line, 100' Roll

General Hydroponics

GH 1/4" (outside diameter) airline for Waterfarm. This clear air tubing is ideal for delivering air from air pumps to pumping columns of WaterFarm ...

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$16.00
$14.40
Save $1.60
AeroGarden 3-Pod Jalepeno Pepper Seet Kit
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$19.95
$17.95

AeroGarden - 3-Pod - Jalepeno Pepper Seet Kit

AeroGrow

A HYDROFARM EXCLUSIVE! Specially designed for the AeroGarden, these are sure to turn everyday meals into extraordinary dishes. Grow delicious jalap...

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$19.95
$17.95
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Digital Light Meter (Footcandles)
Save $5.00
$49.95
$44.95

Digital Light Meter (Footcandles)

Active Eye

$49.95
$44.95
Save $5.00
Active Air Hygro-Thermometer
Save $2.19
$21.95
$19.76

Active Air - Hygro-Thermometer

Active Air

You'll find multiple uses for and multiple places to put this Active Air hygro-thermometer. Check the large number LCD display from a distance, an...

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$21.95
$19.76
Save $2.19