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15% off

FNIRSI

FNIRSI® DMC-100 DC AC Current Voltage Clamp Meter Digital Multimeter

(311)

$50.99$59.99

Exclusive offer available

NU Aqua

NU Aqua PPM Meter

(2)

$19.95

PRM Filtration

PRM 2 Inch Multi-Jet Brass Totalizing Water Meter with Pulse Output

$566.99

PayMore Rockville

EXFO PPM-350D Optical Power Meter

$1,082.99

PRM Filtration

PRM FMDFG25 1-15 SCFM Air Rotameter Flow Meter

$79.99

Canada Welding Supply Inc.

Handy Purge 100 Self Calibrating Weld Purge Monitor

$707.00

Bluelab Conductivity Pen, waterproof handheld EC, ppm and temperature meter with backlit display

Exclusive offer available

GrowersHouse

Bluelab PPM Pen | Waterproof Conductivity Pen for EC and ppm

$99.00

17% off

BetterGrow Hydro

Bluelab Conductivity Pen

$84.86$101.83

PRM Filtration

PRM 2 Inch Multi-Jet Nylon Totalizing Water Meter with Pulse Output, EPDM Seals

$261.99

PRM Filtration

PRM Vacuum Gauge, 0 to -30"WC / 0 to -2 inHg, 2.5 Inch Stainless Steel Case, Brass Internals 1/4 Inch NPT Back Mount, Liquid Filled

$35.99

Nordic Hydro

Aqua Master – H600 pro

$267.00

20% off

BetterGrow Hydro

Aqua Master Tools P160 Pro Electrode

$39.87$49.95

24% off

BetterGrow Hydro

Aqua Master Tools P160 Pro Combo Pen

$98.13$129.95

Sper Scientific Direct

6 In 1 Multi-Parameter Water Quality Pen

$189.00

Exclusive offer available

DailySale

2-Pieces: PH Meter TDS EC LCD Water Purity PPM Filter Hydroponic Pool Tester Tool

$36.00$52.00

PRM Filtration

PRM 1 Inch Electromagnetic Flow Meter

$1,451.99

Sper Scientific Direct

Combination Water Meter Kit with Dissolved Oxygen Probe

$441.60

PRM Filtration

PRM 304 Stainless Steel Pressure Gauge with Brass Internals, 0-30"WC, 2-1/2 Inch Dial, 1/4 Inch NPT Back Mount

$39.99

GroWell

Aqua Master Tools Combo Meter P700 Pro2

$267.00

HeliDirect

ToolkitRC ST8 Advanced Servo Tester, Driver, Analyzer (PWM/PPM/S.Bus)

(4)

$54.99

RMSupply

PD 450 Handheld Meter Kit : pH, mV, DO, Temp Meter

$1,948.00

Evolve Garden Supply

Bluelab Combo Meter Plus

$349.95

Exclusive offer available

NassauElectrical

Benchtop Conductivity Meter

$369.00

18% off

BetterGrow Hydro

Aqua Master Tools H600 Pro Handheld Substrate Meter

$290.20$354.95

Exclusive offer available

Matilda Co

VIVOSUN Digital pH Meter, 3-in-1 TDS/EC/Temperature Meter, 3-in-1 Soil Moisture/pH/Light Tester Combo for Home, Garden and Hydroponics

$61.68$181.95

BULK GROW SUPPLY

Bluelab pH and Conductivity Pen Set, Starter Pack

$199.00

Four Mathey PPM Inflatable Stoppers with Schrader Valve, including the 10 IPS10 model, are shown in increasing sizes. Each features a blue hose with yellow valve connectors and are set side by side against a white background.

WeldingMart.com

Mathey PPM Inflatable Stopper with Schrader Valve 10" - IPS10

$65.00

Exclusive offer available

One Stop Grow Shop

Bluelab Combo Meter

$324.00$358.00

TFtestkits

C-600 pH + Salt Meter

$34.00