2,900+ results for hydroponics ph
- Hydroponics pH Control Kit with pH Up and pH Down Solutions & pH IndicatorOpens in a new window or tabBrand New$16.90 to $29.90Free 2-4 day shippingSave up to 20% when you buy morechemixsol (55) 98.2%
- Hydroponics pH Control Kit with pH Up and pH Down Solutions, pH Indicator 8+8ozOpens in a new window or tabBrand New$19.90Free 2-4 day shippingSave up to 20% when you buy morechemixsol (55) 98.2%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$23.99Free shippingAlmost gone139 soldvalleyhydroponics (18,889) 98.6%
- Hydroponics pH Control Kit with pH Up and pH Down Solutions, pH Indicator, 8ozOpens in a new window or tabBrand New$16.90Free 1-4 day shippingSave up to 20% when you buy morenavivanv (107) 97.5%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment ComboOpens in a new window or tabBrand New$22.88Free shippingFree returns6,244 soldTop Rated Plusthshydro (73,242) 99.5%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabBrand New$10.97Free shippingFree returnswalimart (752) 98.6%
- General Hydroponics pH Test Indicator 8 oz Ounces - up down wide spectrumOpens in a new window or tabBrand New$15.89Free shippingFree returns690 soldTop Rated Plusthshydro (73,242) 99.5%
- General Hydroponics pH Down 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$29.23Free shippingFree returns751 soldTop Rated Plusthshydro (73,242) 99.5%
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.71Was: $7.9015% offFree shippingFree returns345 soldSave up to 15% when you buy morewincen-1 (20,571) 97.9%
- General Hydroponics PH UP, PH DOWN 8oz 1 QT Quart Base Control Adjuster Acid GHOpens in a new window or tabBrand New$12.45 to $29.50Free shipping326+ soldvalleyhydroponics (18,889) 98.6%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabBrand New$13.73Free shippingFree returns110 sold15% off 3+ with couponTop Rated Plusmarysonlinedeals (96,393) 99.6%
- General Hydroponics Ph Down Only 10 fl ozOpens in a new window or tabBrand New$11.99Free shippingSave up to 20% when you buy moresolefinest (34) 78.3%
- General Hydroponics GH pH Test Indicator Control Kit 1 fl oz (30mL) ConcentrateOpens in a new window or tabBrand New60 product ratings - General Hydroponics GH pH Test Indicator Control Kit 1 fl oz (30mL) Concentrate$10.94Free shipping11 watchersnutes (6,433) 98.4%
- pH Down Liquid Premium Buffering For Hydroponics pH Stability - 1 Quart (32oz)Opens in a new window or tabBrand New$19.90Free 2-4 day shippingSave up to 20% when you buy morechemixsol (55) 98.2%
- Concentrated pH Adjuster Up and Down Control Kit for Hydroponics Soil and FeedOpens in a new window or tabBrand New$16.90Free 2-4 day shippingSave up to 20% when you buy morechemixsol (55) 98.2%
- General Hydroponics Ph Up QtOpens in a new window or tabBrand New$11.00+$2.99 shippingblueray123456789 (668) 100%
- General Hydroponics pH Down 32oz Quart / 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.78Free shippingFree returns1,818+ soldTop Rated Plusthshydro (73,242) 99.5%
- General Hydroponics pH Down 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$17.88Free 2-3 day shippingFree returns1,078 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- General Hydroponics pH Up 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$29.24Free shippingFree returns649 soldTop Rated Plusthshydro (73,242) 99.5%
- 4 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$19.48List price: $28.9833% offFree shippingFree returns302 soldSave up to 10% when you buy moreTop Rated Pluseeekitonline (452,821) 99.1%
- General Hydroponics pH Up 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.99Free shippingFree returns1,472 soldTop Rated Plusthshydro (73,242) 99.5%
- General Hydroponics PH 7.0 Calibration Solution- Quart - Free ShippingOpens in a new window or tabBrand New$21.95Free shippingbudqmr (4,780) 99.4%
- General Hydroponics pH Test Indicator 8 oz Ounces - up down wide spectrumOpens in a new window or tabBrand New$15.44Free shippinghydro-pro (1,198) 94.9%
- General Hydroponics pH Test Indicator 8 oz Wide Spectrum / Super ConcentratedOpens in a new window or tabBrand New$15.25Free shipping4cornersorganics (136) 99.3%
- General Hydroponics pH Test Indicator 8 oz Ounces - up down wide spectrumOpens in a new window or tabBrand New$15.99Free 2-3 day shippingFree returns495 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- General Hydroponics pH Down 8 oz Ounces - down wide spectrum upOpens in a new window or tabBrand New$12.49Free 1-3 day shipping92 solddmlsupplies (37,580) 97.1%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment Combo FASTOpens in a new window or tabBrand New$22.89Free 2-3 day shippingFree returns449 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.69Free shipping122 soldinn_2720 (227) 98.7%
- pH Down Liquid Buffering pH Adjuster for Hydroponics and Watering (4-32 Fl Oz)Opens in a new window or tabBrand New$12.50 to $19.50Free 2-4 day shippingSave up to 20% when you buy morechemixsol (55) 98.2%
- 400 g dry granular ph down (compare to General Hydroponics pH Down 1 quart)Opens in a new window or tabOpen Box$15.99Free 2-3 day shippingbboy5900 (1,091) 99.5%
- Digital PH Meter Tester Portable Pocket Water Pool Aquarium Wine HydroponicOpens in a new window or tabBrand New$8.98Free 2-3 day shippingFree returns533 soldSave up to 10% when you buy moreTop Rated Plushanksminerals (99,595) 98%
- Electric PH Meter Digital LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$14.98Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plusthesiliconvalley (461,007) 99.4%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.79Free shippingFree returns110 soldliving-3808 (2,153) 98.1%
- General Hydroponics pH 4.01 Calibration Solution, 8oz.Opens in a new window or tabBrand New$9.50Free shippingSave up to 5% when you buy moresamuraigrowersupply (101) 97.1%
- General Hydroponics PH TEST INDICATOR 8oz GH pH 4.0 to 8.5 Spectrum *Free S&H*Opens in a new window or tabBrand New$16.00Free shipping121 soldvalleyhydroponics (18,889) 98.6%
- General Hydroponics pH Down 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$33.88Free 2-3 day shippingFree returns55 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- General Hydroponics pH Test Indicator Control Kit 30 ml - up down wide spectrumOpens in a new window or tabBrand New$11.00Free shipping58 solddmlsupplies (37,580) 97.1%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.99Was: $11.9925% offFree shippingFree returns2,081 soldSave up to 5% when you buy moreTop Rated Pluswater-all-pure (12,517) 99.7%
- Professional pH Down Liquid Fertilizer Hydroponics and Soil Watering - 16 Fl OzOpens in a new window or tabBrand New$15.90Free 2-4 day shippingSave up to 15% when you buy morechemixsol (55) 98.2%
- Advanced Nutrients Perfect Sensi Grow pH Part B One LiterOpens in a new window or tabBrand New$14.95Free shippingFree returns3 watchersTop Rated Plusthecountrysunshine (19,214) 99.7%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment ComboOpens in a new window or tabBrand New$19.99+$1.99 shippingvillianshideaway (297) 98.7%
- General Hydroponics pH Test Kit Drops - Testing for Hydroponics and LiquidsOpens in a new window or tabBrand New$15.00Free shipping313 solddmlsupplies (37,580) 97.1%
- General Hydroponics pH Up 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.79Free 2-3 day shippingFree returns358 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- MICROBE Life HYDROPONICS PH21402 pH Control Liquid Premium Buffering for pH StabOpens in a new window or tabBrand New$17.32Free shippingnetrew121 (66) 100%
- LCD PH Meter Tester Digital Electric Water Test Pen Pocket Hydroponics AquariumOpens in a new window or tab⭐️⭐️⭐️⭐️⭐️ ✅ US Seller ✅High Quality ✅ Fast ShippingBrand New$9.65Free shippingFree returns657 soldtopfuture2018 (15,887) 99.4%
- General Hydroponics Ph Down Only 3 fl ozOpens in a new window or tabBrand New$10.99Free shippingSave up to 20% when you buy moresolefinest (34) 78.3%
- Digital Electric PH Meter Tester LCD Hydroponics Aquarium Water Pocket Test PenOpens in a new window or tabBrand New$8.99Was: $17.9850% offFree shippingFree returnsSave up to 15% when you buy moreTop Rated Plusgatorcable (259,429) 99.6%
- General Hydroponics pH Test Control Kit Up and Down 8oz Quart Gallon ComboOpens in a new window or tabBrand New$29.95 to $80.00Free 1-3 day shipping166+ solddmlsupplies (37,580) 97.1%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$22.00Free shippingmassautoparts (1,759) 98.8%
- pH Meter, Digital 4 in 1 PH EC TDS Temp Meter for Water Hydroponics, WaterproofOpens in a new window or tabBrand New$11.99Free shippingFree returnsSave up to 20% when you buy moreyedael (12,537) 99.1%
- General Hydroponics pH Control Kit for a Balanced Nutrient SolutionOpens in a new window or tabBrand New$19.99+$6.22 shippingvaticstyles (27) 100%
- General Hydroponics pH Test Indicator Control Kit 1oz - up down wide spectrumOpens in a new window or tabBrand New$13.99Free 2-3 day shippingFree returns347 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- Chemboys pH Up Powder� Hydroponics pH Base Adjuster Liquid Fertilizer forOpens in a new window or tabBrand New$19.99 to $54.99Free shippingdiychemicals (77) 100%
- General Hydroponics pH Up Liquid, 1-Gallon NEWOpens in a new window or tabBrand New$28.49Free shippingja72174 (89) 100%
- Advanced Nutrients Grow Micro Bloom pH Perfect Bundle Set Combo Base 500 mlOpens in a new window or tabBrand New$29.89Free 2-3 day shippingFree returns785 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- General Hydroponics pH Up & pH Down 1 Quart each - GH Water pH Adjuster BufferOpens in a new window or tabBrand New$26.48Free shippingFree returns856 soldTop Rated Plusthshydro (73,242) 99.5%
- General Hydroponics Flora Series FloraGro FloraBloom FloraMicro 16 oz pint - ghOpens in a new window or tabBrand New20 product ratings - General Hydroponics Flora Series FloraGro FloraBloom FloraMicro 16 oz pint - gh$32.90Free shippingFree returns1,811 soldTop Rated Plusthshydro (73,242) 99.5%
- Hanna Instruments GroLine Direct Hydroponics PH Tester HI98115 NewRetail $70Opens in a new window or tabBrand New$58.00Free shippingLast one4 watchersintecextraction (132) 100%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$14.95+$8.85 shippingFree returnsTop Rated Plus9ballwingnewt (962) 99.4%
- MICROBE LIFE HYDROPONICS PH21226 Premium Photosynthesis Plus LiquidOpens in a new window or tabBrand New$23.22Free shippingFree returnsgaynis0 (47) 100%
- Bluelab Combo Meter Plus - Handheld Digital Hydroponic Nutrient and pH MeterOpens in a new window or tabPre-Owned$35.201 bid · Time left1d 9h left (Mon, 07:56 AM)+$10.40 shippingsumek-67 (18) 100%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.94Free shippingFree returnsTop Rated Pluscogolloo (958) 98.5%
- 8 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$21.48Free shippingFree returns5 watchersark_auto_parts (1,925) 99.3%
- General Hydroponics pH Down Liquid, 1-QuartOpens in a new window or tabBrand New$12.49+$7.80 shippingplantedearthhydro (249) 98.7%
- General Hydroponics Ph Down GALLON / 128 fl ozOpens in a new window or tabBrand New$55.99Free shippingSave up to 20% when you buy moresolefinest (34) 78.3%
- microbe life hydroponics ph21402 ph control liquid premium buffering for ph stabOpens in a new window or tabBrand New$16.64Free shippingtheaura13 (38) 95.2%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.89Free shippingFree returns2,385 soldSave up to 7% when you buy moretheperfectpart (874,717) 99.9%
- Advanced Nutrients Grow, Micro, Bloom Bundle pH Perfect Base GMB 1 LiterOpens in a new window or tabBrand New$38.89Free 2-3 day shippingFree returns1,418 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- Hydroponics pH Meter Digital PH Test Pen 0.01 high-Precision Thermometer, Mea...Opens in a new window or tabBrand New3 product ratings - Hydroponics pH Meter Digital PH Test Pen 0.01 high-Precision Thermometer, Mea...$14.27Free 2-4 day shippingyehudastar (30) 94.1%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.68Was: $8.9926% offFree shippingFree returns356 soldTop Rated Pluscablewirecanada (69,834) 96.8%
- General Hydroponics Liquid Ph Control Test Kit Gh 8 Oz up down Adjustment ComboOpens in a new window or tabBrand New$28.54Free shippingFree returnsyour*smart*deals_26 (1,879) 99%
- General Hydroponics pH Up 1 Gallon - buffer gh adjuster hydroponicOpens in a new window or tabBrand New$35.88Free 2-3 day shippingFree returns439 soldTop Rated Plusgf_agriculture (45,508) 99.7%
- 1500 g dry granular ph down (compare to General Hydroponics pH Down 1 Gallon)Opens in a new window or tabOpen Box$29.99Free 2-3 day shippingbboy5900 (1,091) 99.5%
- pH Test Drops pH Reagent Kit Alkaline Water Tester Drinking Water Test - 2pkOpens in a new window or tabBrand New$14.95Free 2-3 day shipping597 soldSave up to 5% when you buy morebestwholesales14 (1,682) 98.9%
- PH Meter for Water Hydroponics Digital PH Tester Pen 0.01Hi-Accuracy Pocket SizeOpens in a new window or tabBrand New$8.99Was: $11.9925% offFree shippingFree returns144 soldTop Rated Plusdomesticwaterfilterexpert (28,150) 99.7%
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