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Meters & ControllersProducts found: 43

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Active Air 2-Way pH & Moisture Meter | 1ct
In Stock: 13
$9.81 $13.99 -30%
Bluelab Conductivity Standard Solution | 250ml - 2.77 EC - Designed for Bluelab Products
In Stock: 95
$73.74 / $12.29 per unit
(minimum purchase of 6)
Bluelab Conductivity Standard Solution | 120ml - 2.77EC
In Stock: 90
$97.92 / $16.32 per unit
(minimum purchase of 6)
Bluelab pH 4.0 Calibration Solution | 250ml - Designed for Bluelab Products
In Stock: 289
$71.04 / $11.84 per unit
(minimum purchase of 6)
Bluelab pH 4.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In Stock: 134
$130.80 / $21.80 per unit
(minimum purchase of 6)
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In Stock: 14
$30.35
Dilution Solutions HM Digital/EC Calibration Solution | 1000 PPM
In Stock: 29
$8.54 $8.95 -5%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In Stock: 334
$95.22 $99.95 -5%
Bluelab Connect Stick 2 | for Bluelab Connect Devices
In Stock: 170
$72.24 $147.11 -51%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In Stock: 58
$131.70 / $21.95 per unit
(minimum purchase of 6)
Bluelab pH Probe KCl Storage Solution | 250ml
In Stock: 135
$163.14 / $27.19 per unit
(minimum purchase of 6)
Bluelab Meter Carrying Case | Meter Not Included
In Stock: 167
$24.32 $29.08 -16%
Bluelab Connect Range Extender | for Bluelab Connect Devices and Connect Stick
In Stock: 11
$99.54 $202.71 -51%
Hydro Systems E-Dos Electric Pump Flow Meter Kit | with Clamp on Fittings
Out of stock
$3,015.30 $3,059.00 -1%
Dilution Solutions EC Calibration Solution | 20pc Box
In Stock: 225
$10.04 $24.95 -60%
Dilution Solutions PH Calibration Solution | 20pcs
In Stock: 97
$23.79 $24.95 -5%
Hanna pH, EC & TDS Tester | High Range
In Stock: 1
$310.49
Hydrofarm Active Air 3-Way Meter
In Stock: 44
$10.86 $14.99 -28%
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In Stock: 80
$34.78 $45.51 -24%
Hanna 7.01 pH Buffer Solution | 500ml
In Stock: 17
$30.35
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BFG Supply

Rootline Supply Co. provides reliable tools and products for growers, gardeners, and cultivators who care about quality. We’re focused on helping people grow — from hom...

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