4,100+ 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 shippingSave up to 20% when you buy morechemixsol (53) 98.2%
- General Hydroponics pH Down Liquid, 1-QuartOpens in a new window or tabBrand New$16.40Free shipping966 soldhydro_store (4,445) 98.6%
- General Hydroponics pH Down Liquid, 1-GallonOpens in a new window or tabBrand New$29.24Free shipping983 soldhydro_store (4,445) 98.6%
- General Hydroponics pH Up Liquid, 1-GallonOpens in a new window or tabBrand New$29.24Free shipping604 soldhydro_store (4,445) 98.6%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabBrand New$10.97Free shippingFree returnswalimart (750) 98.6%
- GH General Hydroponics pH Up and pH Down 1 Quart Combo Kit Water Adjuster BufferOpens in a new window or tabBrand New$26.49Free shippingFree returns1,197 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- General Hydroponics pH Up Liquid, 1 QuartOpens in a new window or tabBrand New$16.39Free shipping577 soldhydro_store (4,445) 98.6%
- General Hydroponics pH Down 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$29.23Free shippingFree returns745 soldTop Rated Plusthshydro (73,189) 99.6%
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- 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 (18,879) 98.6%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$23.99Free shippingAlmost gone138 soldvalleyhydroponics (18,879) 98.6%
- General Hydroponics pH Test Indicator 8 oz Ounces - up down wide spectrumOpens in a new window or tabBrand New$15.99Free shippingFree returns495 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- General Hydroponics pH Test Indicator 8 oz Ounces - up down wide spectrumOpens in a new window or tabBrand New$15.44Free shippinghydro-pro (1,196) 94.6%
- General Hydroponics pH Test Indicator Control Kit 30 ml - up down wide spectrumOpens in a new window or tabBrand New$11.00Free shipping58 solddmlsupplies (37,574) 97.1%
- Hydroponics pH Control Kit with pH Up and pH Down Solutions, pH Indicator 8+8ozOpens in a new window or tabBrand New$19.90Free shippingSave up to 20% when you buy morechemixsol (53) 98.2%
- General Hydroponics FloraNova Bloom, 1-QuartOpens in a new window or tabBrand New$29.96Free shipping59 soldhydro_store (4,445) 98.6%
- 4 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$18.98List price: $28.9835% offFree shippingFree returns296 soldSave up to 10% when you buy moreTop Rated Pluseeekitonline (452,278) 99.1%
- General Hydroponics pH Up 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$29.24Free shippingFree returns647 soldTop Rated Plusthshydro (73,189) 99.6%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabBrand New$13.73Free shippingFree returns109 sold15% off 3+ with couponTop Rated Plusmarysonlinedeals (96,329) 99.6%
- General Hydroponics pH Up 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.99Free shippingFree returns1,471 soldTop Rated Plusthshydro (73,189) 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 (26) 76%
- General Hydroponics pH Down 8 oz Ounces - down wide spectrum upOpens in a new window or tabBrand New$12.49Free 2-4 day shipping92 solddmlsupplies (37,574) 97.1%
- General Hydroponics pH Down 32oz Quart / 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.78Free shippingFree returns1,817+ soldTop Rated Plusthshydro (73,189) 99.6%
- Hydroponics pH Control Kit with pH Up and pH Down Solutions, pH Indicator, 8ozOpens in a new window or tabBrand New$16.90Free shippingSave up to 20% when you buy morenavivanv (103) 97.4%
- General Hydroponics pH Test Indicator 8 oz Wide Spectrum / Super ConcentratedOpens in a new window or tabBrand New$15.25Free shipping4cornersorganics (131) 99.2%
- 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) 97.3%
- 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 (73,189) 99.6%
- General Hydroponics PH UP, PH DOWN 8oz 1 QT Quart Base Control Adjuster Acid GHOpens in a new window or tabBrand New$0.990 bids · Time left3d 3h left (Thu, 07:01 PM)+$6.12 shippingworking_8207 (28) 100%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment ComboOpens in a new window or tabBrand New$22.88Free shippingFree returns6,242 soldTop Rated Plusthshydro (73,189) 99.6%
- General Hydroponics RapidStart, Plant Food, 1-0.5-1, 500 mL.Opens in a new window or tabBrand New$88.83Free shippinghydro_store (4,445) 98.6%
- General Hydroponics CaliMagic, 6-GallonOpens in a new window or tabBrand New$262.45Free shippinghydro_store (4,445) 98.6%
- Concentrated pH Adjuster Up and Down Control Kit for Hydroponics Soil and FeedOpens in a new window or tabBrand New$16.90Free shippingSave up to 20% when you buy morechemixsol (53) 98.2%
- pH Down Liquid Premium Buffering For Hydroponics pH Stability - 1 Quart (32oz)Opens in a new window or tabBrand New$19.90Free shippingSave up to 20% when you buy morechemixsol (53) 98.2%
- General Hydroponics pH Test Kit Drops - Testing for Hydroponics and LiquidsOpens in a new window or tabBrand New$15.00Free shipping313 solddmlsupplies (37,574) 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 (18,879) 98.6%
- General Hydroponics pH Up 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.79Free shippingFree returns358 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- General Hydroponics PH 7.0 Calibration Solution- Quart - Free ShippingOpens in a new window or tabBrand New$21.95Free shippingbudqmr (4,779) 99.4%
- 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 2-4 day shipping166+ solddmlsupplies (37,574) 97.1%
- General Hydroponics pH Up Liquid, 1-Gallon NEWOpens in a new window or tabBrand New$28.49Free shippingja72174 (89) 100%
- General Hydroponics Ph Up QtOpens in a new window or tabBrand New$11.00+$2.99 shippingblueray123456789 (668) 100%
- 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 shippingSave up to 20% when you buy morechemixsol (53) 98.2%
- 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 returns1,809 soldTop Rated Plusthshydro (73,189) 99.6%
- General Hydroponics pH Test Indicator Control Kit 1oz - up down wide spectrumOpens in a new window or tabBrand New$13.99Free shippingFree returns347 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- General Hydroponics pH Down 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$33.88Free shippingFree returns55 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- 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 returns323 soldSave up to 15% when you buy morewincen-1 (20,492) 98%
- 400 g dry granular ph down (compare to General Hydroponics pH Down 1 quart)Opens in a new window or tabOpen Box$15.99Free shippingbboy5900 (1,084) 99.5%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment Combo FASTOpens in a new window or tabBrand New$22.89Free shippingFree returns449 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- Advanced Nutrients Grow Micro Bloom pH Perfect Bundle Set Combo Base 500 mlOpens in a new window or tabBrand New$29.89Free shippingFree returns781 soldTop Rated Plusgf_agriculture (45,475) 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 shippingbboy5900 (1,084) 99.5%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.69Free shipping118 soldinn_2720 (216) 99.1%
- General Hydroponics pH Down 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$17.88Free shippingFree returns1,075 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- 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 (26) 76%
- General Hydroponics pH Control Kit for a Balanced Nutrient SolutionOpens in a new window or tabBrand New$19.99+$6.22 shippingvaticstyles (26) 100%
- 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 returns143 soldTop Rated Plusdomesticwaterfilterexpert (28,082) 99.7%
- Advanced Nutrients Grow, Micro, Bloom Bundle pH Perfect Base GMB 1 LiterOpens in a new window or tabBrand New$38.89Free shippingFree returns1,415 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment ComboOpens in a new window or tabBrand New$19.97Free shippingFree returnsTop Rated Pluskohlco1002 (6,526) 99.6%
- 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 returns656 soldtopfuture2018 (15,836) 99.4%
- General Hydroponics pH Down Liquid, 1-QuartOpens in a new window or tabBrand New$12.49+$7.80 shippingplantedearthhydro (246) 99.1%
- General Hydroponics Ph Down Only 1 fl ozOpens in a new window or tabBrand New$7.99Free shippingsolefinest (26) 76%
- General Hydroponics pH Up 1 Gallon - buffer gh adjuster hydroponicOpens in a new window or tabBrand New$35.88Free shippingFree returns438 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- General Hydroponics pH Control Kit for a Balanced Nutrient SolutionOpens in a new window or tabBrand New$27.99Free shippingAlmost gone16 soldtdsupplycorp (943) 98.6%
- Advanced Nutrients Grow Micro Bloom pH Perfect Bundle Set Combo Base Nutrient 4LOpens in a new window or tabBrand New$114.79Free shippingFree returns299 soldTop Rated Plusgf_agriculture (45,475) 99.7%
- 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 (259,034) 99.6%
- pH Test Drops pH Reagent Kit Alkaline Water Tester Drinking Water Test - 2pkOpens in a new window or tabBrand New$14.95Free shipping596 soldSave up to 5% when you buy morebestwholesales14 (1,681) 98.9%
- General Hydroponics Ph Down Only 3 fl ozOpens in a new window or tabBrand New$9.99Free shippingSave up to 20% when you buy moresolefinest (26) 76%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$22.00Free shippingmassautoparts (1,747) 98.8%
- Chemboys pH Up Powder� Hydroponics pH Base Adjuster Liquid Fertilizer forOpens in a new window or tabBrand New$19.99 to $54.99Free shippingdiychemicals (75) 100%
- Digital Electric PH Meter 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 Pluseeekitonline (452,278) 99.1%
- 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 (873,536) 99.9%
- Professional pH Down Liquid Fertilizer Hydroponics and Soil Watering - 16 Fl OzOpens in a new window or tabBrand New$15.90Free shippingSave up to 15% when you buy morechemixsol (53) 98.2%
- Digital PH Meter Tester Portable Pocket Water Pool Aquarium Wine HydroponicOpens in a new window or tabBrand New$8.98Free shippingFree returns530 soldSave up to 10% when you buy moreTop Rated Plushanksminerals (99,433) 98%
- Hanna Instruments GroLine Direct Hydroponics PH Tester HI98115 NewRetail $70Opens in a new window or tabBrand New$58.00Free shippingLast one4 watchersintecextraction (125) 100%
- 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 (12,427) 99.1%
- General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-GallonOpens in a new window or tabBrand New$44.72Free shippingpremiermp (1) 100%
- Hydroponics pH Down for adjusting and stabilizing pH (1 Quart, 32 Fl Oz, 950 mL)Opens in a new window or tabBrand New$16.90Free shippingSave up to 20% when you buy morechemixsol (53) 98.2%
- New ListingPh up and down Control Kit - 18Oz Total - for Hydroponics, Soil Gardens & Aqu...Opens in a new window or tabBrand New$43.65Free shipping10% off 2+ with couponfastbaba (0) 0%
- Items Per Page