PRODUCT

HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester

$52.99

PRODUCT

Cutting Edge Solutions pH Down, 1 Gal

$33.99

PRODUCT

Cutting Edge Solutions pH Down, 1 qt

$13.99

PRODUCT

GroStar GS1 PH/Temp (2-IN-1) Pen

$115.99

PRODUCT

Cutting Edge Solutions pH Up, 1 qt,

$13.99

PRODUCT

GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen

$178.99

PRODUCT

HM Digital PH-80 pH/Temperature Meter

$47.99

PRODUCT

General Hydroponics® pH Test Kit Indicator - 1oz

$10.50

PRODUCT

pH Test Papers

$8.00