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Exclusive deal available

NU Aqua

NU Aqua PPM Meter

(2)

$19.95

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

GrowersHouse

Bluelab PPM Conductivity Pen

$99.00

Cana Provisions

TDS Meter – Water Quality Tester

(2)

$11.00

HM Digital TRM-1 Inline 3 Probe TDS Meter with 0.25" Quick-Connect Fittings - Spectrapure

SpectraPure, Inc.

HM Digital TRM-1 Inline 3 Probe TDS Meter with 0.25" Quick-Connect Fittings -MTR-TDS-TRM1-4

(2)

$44.99

19% off

Hydro City

Bluelab Conductivity Pen

(1)

$80.00$99.00

Techko Group

Water Quality Tester, Portable TDS Meter Digital (ppm) for Drinking Water

$19.99

Hydrobuilder

Bluelab Conductivity Pen (EC or ppm)

$98.99

Windows101

TDS Meter

(1)

$19.95

Carnivorous Plants Hub Store

TDS Meter - Measure Total Dissolved Solids - Carnivorous Plants, Drinking Water

(22)

$7.99

Go Green Aquaponics

Iron Checker HC

(2)

$74.99

33% off

Aquarius Water

Aquarius Water 5 in 1 Digital Meter TDS EC Salinity TEMP PH Water Tester

(1)

$35.00$52.00

Brew Methods

Apax Lab TDS Meter

(3)

$18.00

Aqua Master Combo Pen P160 Pro2 con valigetta, soluzioni di calibrazione e manuale

Acquaponica.shop

Aqua Master Tools Combo Pen P160 Pro2 – Digital pH, EC, TDS, PPM and temperature meter

$165.00

Bluelab Truncheon Nutrient Meters - Commercial Nutrient Meter - Main

Exclusive deal available

Sylvane

Bluelab Truncheon Nutrient Meters

(1)

$105.00

Fresh Water Systems

HM Digital TDS-4 Pocket Size TDS Meter

$19.46

HM Digital TDS EZ Water Meter | TDS-EZ Water Meter

Reverse Osmosis Superstore

HM Digital TDS-EZ 0-9990 PPM Water Quality Tester

(3)

$25.00

PRM Filtration

PRM 304 Stainless Steel Pressure Gauge with Stainless Steel Internals, 0-150 PSI, 2-1/2 Inch Dial, 1/4 Inch NPT Bottom Mount

$29.99

Tekcoplus Ltd.

TEK-203 Portable Water Quality PH CL2 Free Chlorine Level Tester Monitor Meter for Swimming Pool Spa

(1)

$44.90

HM Digital TDS-4 TM Pocket Size TDS Meter - Spectrapure

SpectraPure, Inc.

HM Digital TDS-4 TM Pocket Size TDS Meter -MTR-TDS-4TM

(1)

$36.99

Fresh Water Systems

HM Digital COM-80 EC/TDS Combo Meter

(8)

$28.54

Hydrobuilder

HM Digital COM-80 HydroTester Series EC/TDS Meter

$34.35

59% off

Cultivate Supply

Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter

$37.00$90.20

Exclusive deal available

House Plant Shop

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

$50.40

Fresh Water Systems

HM Digital DM-3 Commercial In-Line Dual TDS Meter

(1)

$66.95

C-600 multifunction pH and salt meter for pools

TFtestkits

C-600 pH + Salt Meter

$34.00

Hydrobuilder

HM Digital COM-300 Pro Series pH/TDS/EC/Temp Meter

$127.95

21% off

The FX Chain

PSP TripleMeter

$23.00$29.00

A VIVOSUN digital pH probe water tester meter with a cream-colored body, dark blue accents, and a green LCD screen, shown alongside its protective cap on a white background.

Seed Head Exotics

VIVOSUN 5-in-1 Digital pH TDS EC Salinity Temperature Meter Water Tester Pen

$39.99

Exclusive deal available

The GoodFor Company

Total Dissolved Solids Testing Meter (TDS Meter)

$24.00