Quick view Compare Choose Options HM Digital Meters HM Digital PH-STOR pH Electrode Storage Solution MSRP: Was: Now: $24.78 Quick view Compare Choose Options
Quick view Compare Choose Options HM Digital Meters HM Digital PH-80 pH/Temperature Meter MSRP: Was: Now: $51.64 Quick view Compare Choose Options
Quick view Compare Choose Options GroStar GroStar GS2-E replacement Soil Spear pH electrode MSRP: $181.99 Was: Now: $147.25 Quick view Compare Choose Options
Quick view Compare Choose Options GroStar GroStar pH calibration kit pH 4/7, 8 oz. each MSRP: Was: Now: $32.19 Quick view Compare Choose Options
Quick view Compare Choose Options HM Digital Meters HM Digital 1000 ppm TDS Calibration Solution, 3 oz 90 ml MSRP: Was: Now: $25.48 Quick view Compare Choose Options
Quick view Compare Choose Options GroStar GroStar pH calibration kit pH 4/7/10, 8 oz. each MSRP: Was: Now: $39.25 Quick view Compare Choose Options
Quick view Compare FoxFarm FoxFarm Cultivation Nationreg pH DOWN, 1 gal, case of 4 MSRP: Was: Now: $387.36 Quick view Compare
Quick view Compare Choose Options Active Air Active Air 3-Way Meter MSRP: Was: Now: $26.14 Quick view Compare Choose Options
Quick view Compare Add to Cart GroStar GroStar GS4 pH/EC/500ppm/700ppm/Temp 5-in-1 Combo Pen MSRP: Was: Now: $178.99 Quick view Compare Add to Cart
Quick view Compare Add to Cart Milwaukee Instruments Milwaukee Instruments MA871 Digital Brix Refractometer, Range 0-85 MSRP: Was: Now: $199.00 Quick view Compare Add to Cart
