pH, EC & TDS
Showing 17–32 of 94 results
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GroStar GS2-E replacement Soil Spear pH electrode (AI58020)
SALE 36% OFF! Original price was: $181.99.$115.74Current price is: $115.74. Add to cart -
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester (HMDCOM80)
SALE 30% OFF! Original price was: $42.95.$30.05Current price is: $30.05. Add to cart -
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp (HMD500)
SALE 36% OFF! Original price was: $359.00.$230.05Current price is: $230.05. Add to cart -
HM Digital Pro Series Pen style TDS/EC/Temp meter (HM-COM-100)
SALE 27% OFF! Original price was: $74.95.$55.08Current price is: $55.08. Add to cart -
HM Digital pH Electrode storage solution – 60 cc (HM-PH-STOR)
SALE 25% OFF! Original price was: $7.95.$6.00Current price is: $6.00. Add to cart -
GroStar GS1 pH Pen (AI11010)
SALE 33% OFF! Original price was: $115.99.$77.89Current price is: $77.89. Add to cart -
GH pH Test Indicator 8 oz (12/Case) (Not for sale in PR) (722140)
SALE 47% OFF! Original price was: $174.36.$92.19Current price is: $92.19. Add to cart -
Cutting Edge Solutions pH Down, 1 gal, case of 4 (CES3604)
SALE 44% OFF! Original price was: $134.99.$75.47Current price is: $75.47. Add to cart -
Aqua Master Calibration Solution pH 7.00 20ml Sachet (AMT1502)
SALE 26% OFF! Original price was: $45.00.$33.48Current price is: $33.48. Add to cart -
Aqua Master P110 Pro Combo Pen (AMT1013)
SALE 34% OFF! Original price was: $104.95.$69.48Current price is: $69.48. Add to cart -
Microbe Life Hydroponics pH UP, 1 qt (ML21399)
SALE 24% OFF! Original price was: $18.99.$14.39Current price is: $14.39. Add to cart -
Aqua Master Calibration Solution EC 1413 500ml (AMT1301)
SALE 27% OFF! Original price was: $111.60.$81.60Current price is: $81.60. Add to cart -
GH pH Down Liquid Quart (12/Case) (Not for sale in GU VI) (722120)
SALE 47% OFF! Original price was: $188.16.$99.51Current price is: $99.51. Add to cart -
GroStar pH calibration kit (pH 4/7/10, 8 oz. each) (AI61115)
SALE 32% OFF! Original price was: $28.99.$19.61Current price is: $19.61. Add to cart -
Bluelab PeriPod M4 120ml/min per pump *CLOSEOUT* (BLPERIPODM4)
SALE 32% OFF! Original price was: $1,309.00.$884.79Current price is: $884.79. Add to cart -
GroStar pH calibration kit (pH 4/7, 8 oz. each) (AI61113)
SALE 36% OFF! Original price was: $18.99.$12.19Current price is: $12.19. Add to cart
Showing 17–32 of 94 results