pH Meters
$34.99
Sale
-36%
Milwaukee pH Tester
Regular price
$34.99
$54.99
$7.99
Out of stock
Sale
-20%
General Hydroponics Mini pH Test Kit #1515
Regular price
$7.99
$9.99
$7.99
Out of stock
Sale
-20%
Bluelab pH 7.0 Calibration Solution — 250mL
Regular price
$7.99
$9.99
$9.99
Sale
-17%
3 Way Meter (Moister, Light & PH)
Regular price
$9.99
$11.99
$9.99
Sale
-29%
Moisture & pH 2-Way Meter
Regular price
$9.99
$13.99
$6.99
Sale
-36%
General Hydroponics Standard Reference Solution pH 7.0 - 8fl oz
Regular price
$6.99
$10.99
$119.99
Out of stock
Sale
-2%
Bluelab Ph Pen
Regular price
$119.99
$122.99
$17.99
Sale
-10%
Bluelab pH Probe KCI Storage Solution — 250ml
Regular price
$17.99
$19.99
$6.99
Sale
-30%
General Hydroponics Standard Reference Solution pH 4.01 - 8fl oz
Regular price
$6.99
$9.99
$16.99
Out of stock
Sale
-19%
General Hydroponics Standard Reference Solution pH 7.0 - 1qt
Regular price
$16.99
$20.99
$94.99
Sale
-5%
Bluelab Conductivity Pen (ppm)
Regular price
$94.99
$99.99
$16.99
Sale
-15%
Luster Leaf Rapitest Soil 4 in 1 Tester
Regular price
$16.99
$19.99
$6.99
Sale
-30%
General Hydroponics Standard Reference Solution - 8fl oz
Regular price
$6.99
$9.99
$15.99
Sale
-11%
GroLine Quick Cal — 500mL
Regular price
$15.99
$17.99
$10.99
Sale
-27%
Luster Leaf 1817 Rapitest Soil pH/Moisture Tester
Regular price
$10.99
$14.99
$155.99
Sale
-13%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
Regular price
$155.99
$178.99
$102.99
Sale
-14%
GroStar GS1 pH Pen
Regular price
$102.99
$120.00
$85.99
Sale
-10%
Milwaukee EC40 Pro Nutrient Stick
Regular price
$85.99
$95.99
$199.99
Out of stock
Sale
-5%
GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester
Regular price
$199.99
$209.99
$17.99
Sale
-10%
GroLine Storage Solution — 500mL
Regular price
$17.99
$19.99
$139.99
Out of stock
Sale
-7%
Bluelab Truncheon Nutrient Meter
Regular price
$139.99
$149.99
