Filter All listing types All listing types Sale Auction Service Controllers & meters All categories Genetics Seeds Pollen Clones Tissue Cultures Equipment Complete kits Ventilation / Climate Lights Propagation Irrigation system Tents & greenhouses Nutrients Soil & Media Pots & trays Controllers & meters Harvesting & processing Testing Packaging & conditioning Accessories, tools, consumables Services Breeding Compliance Design & Construction Extraction Harvesting Propagation Price Min: Max: Condition New Refurbished Used Update view All categories Genetics Equipment Complete kits Ventilation / Climate Lights Propagation Irrigation system Tents & greenhouses Nutrients Soil & Media Pots & trays Controllers & meters Harvesting & processing Testing Packaging & conditioning Accessories, tools, consumables Services Hanna DiST 5 Waterproof Tester $96.25 GrowersHouse GroLine Waterproof EC/TDS/Temp (ppm) TESTER/PEN with Case + Solutions $85.18 GrowersHouse Hanna GroLine Waterproof Hydroponic pH Tester HI98118 $85.18 GrowersHouse HM Digital Waterproof pH Meter Model PH-200 $83.86 GrowersHouse Bluelab PPM Conductivity Pen $80.91 GrowersHouse Hanna pH Checker Complete Starter Kit with 4 + 7 Calibration Solution $65.56 GrowersHouse Bluelab Replacement pH Probe $61.25 GrowersHouse HM Digital Waterproof Combo Meter COM-100 $59.97 GrowersHouse Hanna PHEP Tester (Model HI 98107) $46.64 GrowersHouse Hanna Checker pH Tester (HI 98103) $35.22 GrowersHouse Milwaukee pH Tester Model pH600 AQ $26.16 GrowersHouse Bluelab Meter Carry Case $21.43 GrowersHouse Bluelab Probe Care Kit pH + Conductivity $20.99 GrowersHouse Hanna 1500PPM Calibration Solution $18.20 GrowersHouse Hanna 1413 uS-CM Calibration Solution -- 16 oz $18.20 GrowersHouse General Hydroponics Calibration pH 7.01 Calibration Solution -- 1 Quart $18.01 GrowersHouse Hanna pH7 Calibration Solutions -- 16 oz $17.07 GrowersHouse Hanna TDS 1382 Calibration 460 ml $16.88 GrowersHouse Hanna pH4 Calibration Solutions -- 16 oz $16.71 GrowersHouse Bluelab Nutrient Conductivity / PPM / Nutrient, EC Probe Care Kit $11.71 GrowersHouse Bluelab pH Probe KCI Storage Solution 100mL $11.54 GrowersHouse BlueLab Calibration Solution - 27.7CF/EC2.77 - 500mL $10.40 GrowersHouse Bluelab Probe Care Kit Conductivity - Small $10.24 GrowersHouse it's just gfor testing $18.20 GrowersHouse Bluelab Commercial Truncheon - Nutrient Meter $119.27 GrowersHouse Hanna GroLine Direct Soil EC Tester/Pen $119 GrowersHouse Bluelab Original Truncheon Meter $116.93 GrowersHouse Hanna Grochek Water Resistant pH Indicator (HI981401N) $113.93 GrowersHouse Hanna Grochek Water Resistant pH Indicator (HI981401N) $113.93 GrowersHouse Hanna Grochek Water Resistant pH Indicator (HI981401N) $113.93 GrowersHouse ← Previous 1 … 13 14 15 16 17 Next →
