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Home
Water Filter Systems
Alexapure
Water Filtration Products
Air Filtration Products
Aquamira
British Berkefeld/Doulton Water Filters
ProOne® Water Filters [formerly Propur]
ProOne® Gravity Water Filter Systems
ProOne® Pressure Water Systems
ProOne® Counter/ Under Counter /Pre-sediment /Refrigerator Water Filters
ProOne® Replacement Water Filters
ProOne® Accessories
Santevia Alkaline Water Filters
At - home - filtration
On - the - go filtration
Replacement filters
Seychelle
Bottles / Bottle Replacement Filters
Pitchers / Replacement Filters
Pumps / Pump Replacement Filters
ZEROWATER®
ZEROWATER® Pitcher/Dispensers
ZEROWATER® Replacement Filters
Culligan Water
Accessories
Water Bottle & Filter
Stainless Steel Stand
Stainless Steel/Plastic Spigot kit
Other Accessories.
Water Testing Kits
HM Digital
Handhelds
Monitors
Controllers
Refractometers
Leak Block Sensor
Accessories
Milwaukee Instruments
Pens
PRO Testers / Portable Meters
MAX Testers / Portable / Bench Meters
Photometers
PRO Monitors & Controllers
Refractometers
Thermometers
Replacement Probes
Solutions & Care Kits
EXCLUSIVE - Bundle Packs
Search Milwaukee MPN or UPC
Hanna Instruments - GroLine
Accessories
Calibration Solution
Replacement Probe/Sensor
Shop by brand
Alexapure®
Aquamira
Berkey Filters
Culligan Water
Hanna Instruments - GroLine
HM Digital Premier water testing instruments
Milwaukee Instruments
ProOne® Water Filters
Santevia
Seychelle
ZeroWater®
Contact Us
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GroLine Waterproof Portable pH/EC/TDS Meter - HI9814
$299.00
GroLine Monitor for Hydroponic Nutrients - HI981420-01
$479.99
Groline Waterproof Hydroponic pH Tester
$99.99
Groline Waterproof EC/TDS (ppm) Tester
$109.99
On Sale
Groline Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester
$214.99
$259.95
On Sale
GroLine Soil pH Tester - HI981030
$139.99
$150.00
Groline Soil Test Direct Soil Conductivity Tester
$159.99
On Sale
HALO2 Groline Wireless pH Tester for Soil - HI9810302
$159.99
$175.00
Groline Nutrient Tester - HI98330
$99.99
Groline pH/EC/TDS Multiparameter Probe for use with HI9814
$184.99
Groline Quick Calibration Solution for GroLine pH and EC Meters (25 x 20 mL sachets)
$44.99
Quick Calibration Solution for GroLine pH and EC Meters (500 ml) - HI5036-050
$29.99