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$19.00 to $49.00Free shippingSponsoredSave up to 20% when you buy morechemixsol (59) 98.4%
- Hydroponics pH Control Kit with pH Up and pH Down Solutions, pH Indicator, 8ozOpens in a new window or tabBrand New$19.90Free shippingSponsoredSave up to 20% when you buy morenavivanv (113) 97.6%
- Hydroponics pH Control Kit with pH Up and pH Down Solutions, pH Indicator 8+8ozOpens in a new window or tabBrand New$19.90Free shippingSponsoredSave up to 20% when you buy morechemixsol (59) 98.4%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$23.99Free shippingLast one142 soldSponsoredvalleyhydroponics (18,910) 98.7%
- General Hydroponics PH 7.0 Calibration Solution- Quart - Free ShippingOpens in a new window or tabBrand New$21.95Free shippingSponsoredbudqmr (4,784) 99.4%
- General Hydroponics pH Up 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.99Free shippingFree returns1,483 soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- 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 shipping328+ soldSponsoredvalleyhydroponics (18,910) 98.7%
- GH General Hydroponics pH Up and pH Down 1 Quart Combo Kit Water Adjuster BufferOpens in a new window or tabBrand New$26.49Free 1-4 day shippingFree returns1,207 soldSponsoredTop Rated Plusgf_agriculture (45,563) 99.6%
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- General Hydroponics pH Down 1 Gallon -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$33.88Free 1-4 day shippingFree returns58 soldSponsoredTop Rated Plusgf_agriculture (45,563) 99.6%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment ComboOpens in a new window or tabBrand New$22.88Free shippingFree returns6,246 soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabBrand New$10.97Free shippingFree returnsSponsoredwalimart (757) 98.7%
- General Hydroponics pH Test Indicator Control Kit 30 ml - up down wide spectrumOpens in a new window or tabBrand New$11.00Free shipping60 soldSponsoreddmlsupplies (37,595) 97.2%
- Advanced Nutrients pH Perfect Sensi Grow Part B 500 mlOpens in a new window or tabBrand New$12.99Free shippingFree returns7 watchersSponsored15% off with coupon. Max $100 offTop Rated Plusthecountrysunshine (19,263) 99.7%
- pH Down Liquid Premium Buffering For Hydroponics pH Stability - 1 Quart (32oz)Opens in a new window or tabBrand New$19.90Free shippingSponsoredSave up to 20% when you buy morechemixsol (59) 98.4%
- Advanced Nutrients pH Perfect Sensi Bloom Part A 500 ml flower enhancerOpens in a new window or tabBrand New$12.99Free shippingFree returnsSponsored15% off with coupon. Max $100 offTop Rated Plusthecountrysunshine (19,263) 99.7%
- Advanced Nutrients Connoisseur Bloom A+B Bundle pH Perfect Base 1 LiterOpens in a new window or tabBrand New$38.00Free shippingFree returnsLast one10 soldSponsored15% off with coupon. Max $100 offTop Rated Plusthecountrysunshine (19,263) 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 2-3 day shippingFree returns379 soldSponsoredBuy 1, get 1 10% off with couponwincen-1 (20,757) 97.9%
- General Hydroponics pH Up 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.79Free 1-4 day shippingFree returns363 soldSponsoredTop Rated Plusgf_agriculture (45,563) 99.6%
- 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 shipping123 soldSponsoredvalleyhydroponics (18,910) 98.7%
- General Hydroponics Ph Down Only 1 fl ozOpens in a new window or tabBrand New$9.99Free shippingSponsoredsolefinest (55) 78.4%
- 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 soldSponsoredTop Rated Plusgf_agriculture (45,563) 99.6%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabOpen Box$10.99Free 2-3 day shippingFree returnsSponsoredTop Rated Plusdossett-limited (6,312) 100%
- General Hydroponics pH Down 8 oz Ounces - down wide spectrum upOpens in a new window or tabBrand New$12.49Free 2-4 day shipping96 soldSponsoreddmlsupplies (37,595) 97.2%
- General Hydroponics Ph Down Only 10 fl ozOpens in a new window or tabBrand New$11.99Free shippingSponsoredSave up to 20% when you buy moresolefinest (55) 78.4%
- 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 shipping27 soldSponsorednutes (6,443) 98.4%
- General Hydroponics pH Down 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$16.78Free shippingFree returns2,597 soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- General Hydroponics pH Test Indicator 8 oz Ounces - up down wide spectrumOpens in a new window or tabBrand New$15.89Free shippingFree returns690 soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- General Hydroponics pH Test Indicator Kit 1 oz. Wide Spectrum Super-ConcentratedOpens in a new window or tabBrand New$13.73Free shippingFree returns110 soldSponsored15% off 3+ with couponTop Rated Plusmarysonlinedeals (96,512) 99.6%
- pH Down Liquid Buffering pH Adjuster for Hydroponics and Watering (4-32 Fl Oz)Opens in a new window or tabBrand New$19.00 to $39.00Free shippingSponsoredSave up to 20% when you buy morechemixsol (59) 98.4%
- Concentrated pH Adjuster Up and Down Control Kit for Hydroponics Soil and FeedOpens in a new window or tabBrand New$17.90Free shippingSponsoredSave up to 20% when you buy morechemixsol (59) 98.4%
- Concentrated pH Adjuster Up and Down Control Kit. Optimal Soil and Feed WaterOpens in a new window or tabBrand New$16.90Free shipping55 soldSponsoredSave up to 12% when you buy morenavivanv (113) 97.6%
- Digital PH Meter Tester Portable Pocket Water Pool Aquarium Wine HydroponicOpens in a new window or tabBrand New$8.98Free 2-3 day shippingFree returns540 soldSponsoredSave up to 10% when you buy moreTop Rated Plushanksminerals (99,869) 98.1%
- 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 2-3 day shippingFree returns310 soldSponsoredSave up to 10% when you buy moreTop Rated Pluseeekitonline (453,766) 99.1%
- General Hydroponics pH Down 32 oz / 1 Quart -buffer gh adjuster hydroponicOpens in a new window or tabBrand New$17.88Free 1-4 day shippingFree returns1,081 soldSponsoredTop Rated Plusgf_agriculture (45,563) 99.6%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.69Free shipping130 soldSponsoredinn_2720 (241) 98%
- General Hydroponics pH Up 32oz Quart / 1 Gallon - buffer gh adjuster hydroponicOpens in a new window or tabBrand New16 product ratings - General Hydroponics pH Up 32oz Quart / 1 Gallon - buffer gh adjuster hydroponic$16.99 to $29.24Free shippingFree returns806+ soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- 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 returns2,090 soldSponsoredSave up to 5% when you buy morewater-all-pure (12,578) 99.7%
- General Hydroponics pH Control Kit for a Balanced Nutrient SolutionOpens in a new window or tabBrand New$28.49Free shippingSponsoredegy-book (263) 98.9%
- Digital Electric PH Meter Tester LCD Hydroponics Aquarium Water Pocket Test PenOpens in a new window or tabBrand New$8.99Was: $17.9850% offFree 2-3 day shippingFree returnsSponsoredSave up to 15% when you buy moreTop Rated Plusgatorcable (260,029) 99.6%
- EC PPM pH Monitor for Hydroponics Nutrients, WiFi pH PPM Tester for Plant Gro...Opens in a new window or tabBrand New$115.05Free shippingSponsoredamiadmi (96) 100%
- General Hydroponics pH Test Kit Drops - Testing for Hydroponics and LiquidsOpens in a new window or tabBrand New$15.00Free shipping314 soldSponsoreddmlsupplies (37,595) 97.2%
- Hydroponics Ph Up & Down Kit 10oz Bottle Adjuster for Hydroponic SystemsOpens in a new window or tabBrand New$27.93Free shippingFree returnsSponsoredbragain.shopping (4) 100%
- New ListingGeneral Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$14.95+$8.85 shippingFree returnsSponsoredTop Rated Plus9ballwingnewt (986) 99.6%
- 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 returnsSponsoredSave up to 20% when you buy moreTop Rated Plusyedael (12,731) 99.1%
- General Hydroponics pH Up & pH Down 1 Quart each - GH Water pH Adjuster BufferOpens in a new window or tabBrand New$26.48Free shippingFree returns857 soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- General Hydroponics pH 4.01 Calibration Solution, 8oz.Opens in a new window or tabBrand New$9.50Free shippingSponsoredSave up to 5% when you buy moresamuraigrowersupply (103) 97.1%
- General Hydroponics pH 4.01 Calibration Solution, 1 Qt.Opens in a new window or tabBrand New$12.00+$9.43 shippingSponsoredhhydroponics (271) 100%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.89Free shippingFree returns2,392 soldSponsoredSave up to 7% when you buy moretheperfectpart (876,808) 99.9%
- MICROBE Life HYDROPONICS PH21402 pH Control Liquid Premium Buffering for pH StabOpens in a new window or tabBrand New$17.32Free shippingLast one1 watchersSponsorednetrew121 (80) 100%
- Digital PH Meter Tester Pen for Water Hydroponics Home Drinking Aquarium PoolOpens in a new window or tabBrand New$7.93Free shippingFree returnsSponsoredSave up to 15% when you buy morehomegardensaler (82) 100%
- Microbe Life Hydroponics PH21227 Photosynthesis Plus Microbial InoculantOpens in a new window or tabBrand New$31.61Free 2-4 day shippingSponsoredtdsupplycorp (968) 98.5%
- New ListingDigital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH and ECOpens in a new window or tabOpen Box$35.00Free shippingSponsoreddiversegoodsdepot (15) 0%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$22.00Free 2-3 day shippingSponsoredmassautoparts (1,774) 98.8%
- General Hydroponics pH Control Test Kit - GH 8 oz Up Down Adjustment ComboOpens in a new window or tabBrand New$22.95Free shippingSponsoredpokerpro725 (13,293) 0%
- 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+ soldSponsoreddmlsupplies (37,595) 97.2%
- General Hydroponics Ph Up & Ph Down 8oz Combo Lot NewOpens in a new window or tabBrand New$15.95+$7.90 shippingSponsoredplantedearthhydro (255) 98.7%
- Standard Hydroponics pH Up and Down Kit - 10 Ounce Bottle pH Adjuster for Hyd...Opens in a new window or tabBrand New$30.04Free shippingFree returnsSponsoredavishadavi02 (529) 99.2%
- 2PCS Digital LCD Electric PH Meter Tester Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$11.90Free 2-3 day shippingFree returns17 soldSponsoredBuy 1, get 1 10% off with couponwincen-1 (20,757) 97.9%
- 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 returns1,820 soldSponsoredTop Rated Plusthshydro (73,357) 99.5%
- Electric PH Meter Digital LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$12.98Free 2-3 day shippingFree returnsSponsoredSave up to 10% when you buy moreTop Rated Plusthesiliconvalley (461,401) 99.4%
- General Hydroponics pH Up Liquid, 1 QuartOpens in a new window or tabBrand New$7.00+$6.35 shippingSponsoredslickrickmon (441) 100%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.79Free shippingFree returns112 soldSponsoredliving-3808 (2,158) 98.1%
- Standard Hydroponics Ph up and down Kit - 10 Ounce Bottle Ph AdjusterOpens in a new window or tabBrand New$27.57Free shippingFree returnsSponsoredamazingzhang88 (1) 100%
- General Hydroponics pH Down Liquid, 1-QuartOpens in a new window or tabBrand New$19.90Free 2-4 day shippingFree returnsSponsoredkanstore (2) 100%
- 400 g dry granular ph down (compare to General Hydroponics pH Down 1 quart)Opens in a new window or tabOpen Box$15.99Free shippingSponsoredbboy5900 (1,103) 99%
- General Hydroponics pH Up 1 Gallon - buffer gh adjuster hydroponicOpens in a new window or tabBrand New$35.88Free 1-4 day shippingFree returns440 soldSponsoredTop Rated Plusgf_agriculture (45,563) 99.6%
- Chemboys pH Up Powder� Hydroponics pH Base Adjuster Liquid Fertilizer forOpens in a new window or tabBrand New$19.99 to $54.99Free shippingSponsoreddiychemicals (78) 100%
- TrolMaster Aqua-X Reservoir pH Sensor PPH-1Opens in a new window or tabBrand New$49.99+$6.16 shippingSponsoredintelsellerondenver (109) 100%
- General Hydroponics pH Control Kit for a Balanced Nutrient SolutionOpens in a new window or tabBrand New$22.88+$6.33 shippingSponsoredonemedadvance_0 (14) 100%
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.70Free shippingSponsoredatops_33 (4,229) 98.5%
- General Hydroponics pH Control Kit for a Balanced Nutrient SolutionOpens in a new window or tabBrand New$19.99+$6.22 shippingSponsoredvaticstyles (29) 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 returns659 soldSponsoredTop Rated Plustopfuture2018 (15,987) 99.3%
- General Hydroponics (GH) pH Control KitOpens in a new window or tabBrand New$13.99+$6.12 shippingSponsoredficusit (2,171) 100%
- Bluelab pH Pen Tester Calibration Meter Kit: Aquarium / Plants (Open Box)Opens in a new window or tabOpen Box$64.99+$4.38 shippingSponsoredlabe_4524 (677) 98.9%
- Professional pH Down Liquid Fertilizer Hydroponics and Soil Watering - 16 Fl OzOpens in a new window or tabBrand New$25.00Free shippingSponsoredSave up to 15% when you buy morechemixsol (59) 98.4%
- 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 returns147 soldSponsored15% off with coupon. Max $100 offTop Rated Plusdomesticwaterfilterexpert (28,282) 99.7%
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