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15 Pack pH Calibration Buffer Powder with 3 Bottles, 250 ml Each for pH 6.86, pH 4.00 and pH 9.18 Calibration Solution, pH Calibration Packets for pH Tester/Pen/Meter
KWD 7
pH H2 Tester for Hydrogen Water Bottle TDS ORP Meter for Testing Drinking Water PPM EC Meter for Water Hydroponics 6 in 1 pH H2 ORP TDS EC Temp Meter for Pool, Kombucha, Brewing
KWD 11
56.2 mS/cm Calibration Solution Kit, 4-Pack 35.0ppt Conductivity Standard Calibration Solution 50 ml for Aquarium Salinity Tester, Pool Salt Tester, Hydroponics EC PPM Meter
KWD 5
Digital Salinity Tester and 56.2mS/cm(35.0 PPT) Calibration Solution Combo for Saltwater Pool, Seawater, Aquarium, Fish Tank
KWD 12.500
1413 μS/cm Calibration Solution 50mL Conductivity Standard Calibration Solution Kit 4-Pack for EC TDS Meter Hydroponics Conductivity Tester
KWD 5
Saltwater Aquarium Salinity pH Tester for Reef Aquarium Digital Pool Salt Tester with 35ppt Calibration Solution Measure pH Salt EC TDS Temp 0-150ppt Large Range Salt Meter for Pool, Koi Pond
KWD 12.500
pH Calibration Solution Kit (7.00, 4.00, 10.01) for pH Meter, 50 mL Each, pH Calibration Buffer Solution for Easy Calibration, 4 Bottles pH Buffer Combo
KWD 5.500
-8%
Truncheon Nutrient Meter for Hydroponic Digital Conductivity Tester for Water EC and TDS Meter with EC CF 500ppm 700ppm for Indoor Plant Grow Hydro Reservoir Tank Aeroponic Garden
KWD 16.500
-16%
pH Meter for Water Digital EC and PPM Meter for Hydroponics Nutrient 4 in 1 pH EC TDS Temperature Tester with Large Display for Indoor Plant Grow DWC Setup Aeroponic Pool Aquarium
KWD 10.500
pH Meter for Water 4 in 1 pH EC TDS Temp Meter for Hydroponics PPM and EC Water Tester Digital pH PPM Meter for Nutrients Growing Hydroponics Gardening DWC hydroponics System
KWD 10.500
Pool Water Tester 6 in 1 Digital pH and Salinity Meter for Swimming Pool Hot Tub Hydroponics Aquarium Multi-functional pH Salt ORP EC TDS Temp Tester Kit
KWD 9.500
pH Meter and Salinity Meter Combo for Saltwater Pool 6 in 1 pH Salt SG EC TDS Temp Meter for Reef Aquarium Seawater Tank Koi Fish Pond PPM and pH Water Tester for Hydroponics Nutrients Growing
KWD 9
-19%
16 Inch Water Meter Key with 4 Way Multi-functional Water Utilities Key Contractor Grade Valve Shutoff Key Tool for Main Water Meter
KWD 6.500
Digital Salinity Tester for Salt Water - Aquarium Salinity Meter with ATC, IP67 Waterproof, 0-200 PPT Large Range Multi-Parameter Tester for Seawater, Fish Tank, Hydroponics
KWD 8.500
