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Best selling products: Best General Hydroponics pH Calibration Solutions Control for Hydroponics

BestsellingTop Rated
FoxFarm FX14019 Tiger Bloom Fertilizer - 1qt
Rank 1
FoxFarm FX14019 Tiger Bloom Fertilizer - 1qt
(54)
$18.00 New
No used products available
FoxFarm Bush Doctor Nutrients Fertilizer - 1lb (FX17010)
Rank 2
FoxFarm Bush Doctor Nutrients Fertilizer - 1lb (FX17010)
(8)
$18.99 New
No used products available
General Hydroponics 722125 pH Down Liquid Fertilizer - 1 Gallon
Rank 3
General Hydroponics 722125 pH Down Liquid Fertilizer - 1 Gallon
(51)
$32.95 New
No used products available
General Hydroponics GH1532 pH Down Liquid Fertilizer - 1 Quart
Rank 4
General Hydroponics GH1532 pH Down Liquid Fertilizer - 1 Quart
(108)
$16.75 New
$10.00 Used
FoxFarm Grow Big Liquid Concentrate - 1qt
Rank 5
FoxFarm Grow Big Liquid Concentrate - 1qt
(53)
$24.79 New
No used products available
Advanced Nutrients Grow pH Fertilizer - 0.26 gal
Rank 6
Advanced Nutrients Grow pH Fertilizer - 0.26 gal
(16)
$18.89 New
No used products available
FoxFarm FX14045 Water Soluble Plant Foods
Rank 7
FoxFarm FX14045 Water Soluble Plant Foods
(20)
$78.98 New
No used products available
Technaflora Sugar Daddy 20 Liters Fertilizer
Rank 8
Technaflora Sugar Daddy 20 Liters Fertilizer
(2)
$344.99 New
No used products available
Fox Farm Open Sesame, Cha Ching and Beastie Bloomz Plant Nutrients Combo Pack Fertilizer - 6oz
Rank 9
Fox Farm Open Sesame, Cha Ching and Beastie Bloomz Plant Nutrients Combo Pack Fertilizer - 6oz
(8)
$39.99 New
No used products available
General Hydroponics pH Up Liquid Premium Buffering For pH Stability - 1 gal
Rank 10
General Hydroponics pH Up Liquid Premium Buffering For pH Stability - 1 gal
(16)
$32.79 New
No used products available
FoxFarm FX14029 2-Pound Beastie Bloomz
Rank 11
FoxFarm FX14029 2-Pound Beastie Bloomz
(8)
$48.95 New
No used products available
MasterBlend 4-18-38 Tomato & Vegetable Fertilizer 5 Pound Formula
Rank 12
MasterBlend 4-18-38 Tomato & Vegetable Fertilizer 5 Pound Formula
(48)
$13.99 New
No used products available
Botanicare BC32303 Plant Growth Enhancer - 1 Gallon
Rank 13
Botanicare BC32303 Plant Growth Enhancer - 1 Gallon
(16)
$42.95 New
No used products available
FoxFarm FX14103 Fertilizer
Rank 14
FoxFarm FX14103 Fertilizer
(11)
$20.00 New
No used products available
Plant Success Great White Mycorrhizae Powder - 4oz
Rank 15
Plant Success Great White Mycorrhizae Powder - 4oz
(65)
$25.00 New
No used products available
General Hydroponics HGC722080 Ph Control Kit for a Balanced Nutrient Solution
Rank 16
General Hydroponics HGC722080 Ph Control Kit for a Balanced Nutrient Solution
(2)
$24.74 New
No used products available
Advanced Nutrients Big Bud Liquid Bloom Booster Enhancer
Rank 17
Advanced Nutrients Big Bud Liquid Bloom Booster Enhancer
(5)
$32.99 New
No used products available
Advanced Nutrients 236015 Bud Ignitor Fertilizer
Rank 18
Advanced Nutrients 236015 Bud Ignitor Fertilizer
(5)
$104.40 New
No used products available
Advanced Nutrients pH Perfect Sensi Bloom Part A Liquid - 1L (610114)
Rank 19
Advanced Nutrients pH Perfect Sensi Bloom Part A Liquid - 1L (610114)
(8)
$19.90 New
No used products available
General Hydroponics 718799 FloraNova Grow & Bloom
Rank 20
General Hydroponics 718799 FloraNova Grow & Bloom
(21)
$21.09 New
No used products available
EXHALE XL Homegrown Co2 Bag - EX50002
Rank 21
EXHALE XL Homegrown Co2 Bag - EX50002
(13)
$59.99 New
No used products available
Advanced Nutrients 6101-15 Lawn Nutrient Package, 4 L
Rank 22
Advanced Nutrients 6101-15 Lawn Nutrient Package, 4 L
(4)
$45.99 New
No used products available
Xtreme HGC721205 Additives & Supplements - 2.2lbs
Rank 23
Xtreme HGC721205 Additives & Supplements - 2.2lbs
(5)
$29.99 New
No used products available
Botanicare Silica Blast Plant Biomass Yield Enhancer, 1-Quart (HGC732485)
Rank 24
Botanicare Silica Blast Plant Biomass Yield Enhancer, 1-Quart (HGC732485)
(13)
$9.99 New
No used products available
FoxFarm FX14109 Dirty Dozen Starter Kit Nutrient Additive
Rank 25
FoxFarm FX14109 Dirty Dozen Starter Kit Nutrient Additive
(64)
$99.00 New
No used products available
General Hydroponics Hgc732802 Armor SI Plant Growth Enhancement Quart
Rank 26
General Hydroponics Hgc732802 Armor SI Plant Growth Enhancement Quart
(27)
$20.00 New
No used products available
General Hydroponics CALiMAGic GH1772 Calcium-Magnesium Supplement - 0.25 gal
Rank 27
General Hydroponics CALiMAGic GH1772 Calcium-Magnesium Supplement - 0.25 gal
(55)
$21.65 New
No used products available
General Hydroponics pH Up Liquid 32 Oz
Rank 28
General Hydroponics pH Up Liquid 32 Oz
(8)
$15.98 New
No used products available
MasterBlend 4-18-38 Fertilizer Combo Kit - 25lbs
Rank 29
MasterBlend 4-18-38 Fertilizer Combo Kit - 25lbs
(10)
$24.95 New
No used products available
Advanced Nutrients 1301-14 Grow pH Perfect Fertilizer
Rank 30
Advanced Nutrients 1301-14 Grow pH Perfect Fertilizer
(4)
$23.08 New
No used products available
Plant Success Great White Mycorrhizae - 1 Quart
Rank 31
Plant Success Great White Mycorrhizae - 1 Quart
$185.99 New
No used products available
Advanced Nutrients Rhino Skin Fertilizer 250ml
Rank 32
Advanced Nutrients Rhino Skin Fertilizer 250ml
(31)
$11.19 New
No used products available
Advanced Nutrients 3750-14 Overdrive Fertilizer
Rank 33
Advanced Nutrients 3750-14 Overdrive Fertilizer
(26)
$31.23 New
No used products available
Roots Organics 3 Cubic Foot Plant in Bag Fertilizer
Rank 34
Roots Organics 3 Cubic Foot Plant in Bag Fertilizer
(4)
$64.99 New
No used products available
Technaflora Recipe for Success Starter Kit (TFPR02006)
Rank 35
Technaflora Recipe for Success Starter Kit (TFPR02006)
(47)
$54.99 New
$45.00 Used
General Hydroponics GH Flora Series 16oz. Nutrients
Rank 36
General Hydroponics GH Flora Series 16oz. Nutrients
(22)
$32.90 New
No used products available
Plant Success Great White Mycorrhizae - 8 oz
Rank 37
Plant Success Great White Mycorrhizae - 8 oz
(36)
$36.00 New
No used products available
General Hydroponics HGC718025 FloraBloom Advanced Nutrient System
Rank 38
General Hydroponics HGC718025 FloraBloom Advanced Nutrient System
(1)
$97.99 New
No used products available
Emerald Triangle 719950 Sonic Bloom Fertilizer 1 LB
Rank 39
Emerald Triangle 719950 Sonic Bloom Fertilizer 1 LB
(8)
$41.99 New
No used products available
Nectar For The Gods NGHH1004 Herculean Harvest - 1Gal
Rank 40
Nectar For The Gods NGHH1004 Herculean Harvest - 1Gal
(11)
$36.89 New
No used products available
FoxFarm Cha Ching 2 lb Nutrient Aditive Plant Food Fertilizers - FX14025
Rank 41
FoxFarm Cha Ching 2 lb Nutrient Aditive Plant Food Fertilizers - FX14025
(3)
$55.00 New
No used products available
General Hydroponics FloraBloom Advanced Nutrient System - 946ml
Rank 42
General Hydroponics FloraBloom Advanced Nutrient System - 946ml
(4)
$18.95 New
No used products available
General Hydroponics RapidStart for Root Branching 1L
Rank 43
General Hydroponics RapidStart for Root Branching 1L
(12)
$123.99 New
No used products available
Advanced Nutrients 236014 Ignitor Fertilizer - 1 Liter
Rank 44
Advanced Nutrients 236014 Ignitor Fertilizer - 1 Liter
(15)
$23.99 New
No used products available
Advanced Nutrients Piranha Liquid Fertilizer 250ml
Rank 45
Advanced Nutrients Piranha Liquid Fertilizer 250ml
(21)
$19.80 New
No used products available
Fox Farm Open Sesame 1 LB - FoxFarm Bloom Flower Enhancer Nutrient
Rank 46
Fox Farm Open Sesame 1 LB - FoxFarm Bloom Flower Enhancer Nutrient
(3)
$24.99 New
No used products available
General Hydroponics FloraKleen 1 Quart 32oz - GH Flora Kleen Final Flush Agent
Rank 47
General Hydroponics FloraKleen 1 Quart 32oz - GH Flora Kleen Final Flush Agent
(17)
$14.99 New
No used products available
General Hydroponics Koolbloom Gardening Liquid - 1 Quart
Rank 48
General Hydroponics Koolbloom Gardening Liquid - 1 Quart
(37)
$25.19 New
No used products available
Gaia Green GAGWC2L Worm Casting - 2L
Rank 49
Gaia Green GAGWC2L Worm Casting - 2L
(2)
$23.99 New
No used products available
Botanicare Hydroplex Bud Flower Enhancer 32oz 1 Quart
Rank 50
Botanicare Hydroplex Bud Flower Enhancer 32oz 1 Quart
(1)
$27.50 New
No used products available
Emerald Harvest Emerald Goddess Plant Tonic - 1 Gallon
Rank 51
Emerald Harvest Emerald Goddess Plant Tonic - 1 Gallon
(4)
$109.99 New
No used products available
Botanicare 704080 Hydroguard Bacillus Root Inoculant
Rank 52
Botanicare 704080 Hydroguard Bacillus Root Inoculant
(21)
$62.10 New
No used products available
Advanced Nutrients pH Perfect Sensi Grow Part A 1L
Rank 53
Advanced Nutrients pH Perfect Sensi Grow Part A 1L
(7)
$18.00 New
No used products available
Advanced Nutrients 4020-15 Rhino Skin
Rank 54
Advanced Nutrients 4020-15 Rhino Skin
(6)
$65.00 New
No used products available
"General Hydroponics PH Test Kit, 1-Ounce"
Rank 55
"General Hydroponics PH Test Kit, 1-Ounce"
(62)
$10.99 New
No used products available
General Hydroponics 732531 KoolBloom Ripening Formula
Rank 56
General Hydroponics 732531 KoolBloom Ripening Formula
(30)
$25.78 New
No used products available
Botanicare NBHGQT Fertilizer - 1 Quart
Rank 57
Botanicare NBHGQT Fertilizer - 1 Quart
(52)
$7.19 New
No used products available
Botanicare Pure Blend Pro Bloom 1 Gallon Hydroponic Flowering Nutrients 1gal
Rank 58
Botanicare Pure Blend Pro Bloom 1 Gallon Hydroponic Flowering Nutrients 1gal
(13)
$52.99 New
No used products available
Advanced Nutrients Flawless Finish 4l Cleaning Flushing Solution 4 Liter
Rank 59
Advanced Nutrients Flawless Finish 4l Cleaning Flushing Solution 4 Liter
(2)
$48.99 New
No used products available
Technaflora 720575 BC Bloom 20 Liter
Rank 60
Technaflora 720575 BC Bloom 20 Liter
$179.99 New
No used products available
Plant Success PRPSGW01 Rooting Stimulator - 1oz
Rank 61
Plant Success PRPSGW01 Rooting Stimulator - 1oz
(39)
$10.00 New
No used products available
Advanced Nutrients pH Perfect Connoisseur Bloom Part A Plant Nutrient - 1L
Rank 62
Advanced Nutrients pH Perfect Connoisseur Bloom Part A Plant Nutrient - 1L
(20)
$23.99 New
No used products available
General Hydroponics FloraNova Grow GH1622 Fertilizer (718800)- 1 Quart
Rank 63
General Hydroponics FloraNova Grow GH1622 Fertilizer (718800)- 1 Quart
(31)
$27.85 New
No used products available
Advanced Nutrients Big Bud Powder - 5.5 lbs
Rank 64
Advanced Nutrients Big Bud Powder - 5.5 lbs
(7)
$220.00 New
No used products available
Canna Coco A & B 1 Liter Set - Hydroponics Base Grow Veg Bloom Nutrient 1L
Rank 65
Canna Coco A & B 1 Liter Set - Hydroponics Base Grow Veg Bloom Nutrient 1L
(4)
$33.95 New
No used products available
General Hydroponics GLCMBX0008 MaxiGro MaxiBloom KoolBloom Combo 2.2 LB
Rank 66
General Hydroponics GLCMBX0008 MaxiGro MaxiBloom KoolBloom Combo 2.2 LB
$57.95 New
No used products available
Terpinator 749305 1L Fertilizer Nutrient - Brown
Rank 67
Terpinator 749305 1L Fertilizer Nutrient - Brown
(21)
$24.49 New
No used products available
FoxFarm FX14011 Grow Big Hydroponic Liquid Concentrate Fertilizer - 1 Gallon
Rank 68
FoxFarm FX14011 Grow Big Hydroponic Liquid Concentrate Fertilizer - 1 Gallon
(4)
$54.99 New
No used products available
FoxFarm Fx17070 Cultivation Nation 1 PT Case of 12 Ph up 1 Pint
Rank 69
FoxFarm Fx17070 Cultivation Nation 1 PT Case of 12 Ph up 1 Pint
$9.99 New
No used products available
Rock GGRR1L Heavy Yields Nutrients Resinator - 1 Liter
Rank 70
Rock GGRR1L Heavy Yields Nutrients Resinator - 1 Liter
(13)
$21.95 New
No used products available
Emerald Harvest 723946 King Kola Bloom Booster 3.8 L
Rank 71
Emerald Harvest 723946 King Kola Bloom Booster 3.8 L
(3)
$109.98 New
No used products available
Advanced Nutrients 6550-15 Sensizym Fertilizer - 4 Liter
Rank 72
Advanced Nutrients 6550-15 Sensizym Fertilizer - 4 Liter
(7)
$79.85 New
No used products available
DL Wholesale Inc 705582 Humboldt Counties Nutrient Package
Rank 73
DL Wholesale Inc 705582 Humboldt Counties Nutrient Package
(5)
$119.68 New
No used products available
Green Green - GAIA GREEN Power Bloom Fertilizer (2kg)
Rank 74
Green Green - GAIA GREEN Power Bloom Fertilizer (2kg)
(5)
$28.99 New
No used products available
Advanced Nutrients Sensi Cal-mag Xtra Plant Nutrient 4l Fertilizer
Rank 75
Advanced Nutrients Sensi Cal-mag Xtra Plant Nutrient 4l Fertilizer
(2)
$54.99 New
No used products available
Nirvana Organic Biostimulant (Advanced Nutrients) (355014)
Rank 76
Nirvana Organic Biostimulant (Advanced Nutrients) (355014)
(14)
$26.49 New
No used products available
FoxFarm FX14007 Grow Big Soil Liquid Concentrate Fertilizer - 1 Gallon
Rank 77
FoxFarm FX14007 Grow Big Soil Liquid Concentrate Fertilizer - 1 Gallon
(29)
$86.99 New
No used products available
Spray-N-Grow 1 Liter Nutrient SPSNGL
Rank 78
Spray-N-Grow 1 Liter Nutrient SPSNGL
(1)
$29.95 New
No used products available
General Hydroponics MaxiBloom Plant Food for Flowers - 2.2 lbs
Rank 79
General Hydroponics MaxiBloom Plant Food for Flowers - 2.2 lbs
(32)
$19.85 New
No used products available
Botanicare Cal-Mag Plus Calcium, Magnesium and Iron Plant Supplement - 5gal.
Rank 80
Botanicare Cal-Mag Plus Calcium, Magnesium and Iron Plant Supplement - 5gal.
(8)
No new products available
No used products available
Heavy 16 Prime Concentrate 32oz Quart 1 Liter Hydroponics Nutrient Grow Bloom
Rank 81
Heavy 16 Prime Concentrate 32oz Quart 1 Liter Hydroponics Nutrient Grow Bloom
(2)
$62.99 New
No used products available
General Hydroponics MaxiGro Plant Food - 2.2lbs
Rank 82
General Hydroponics MaxiGro Plant Food - 2.2lbs
(13)
$18.99 New
No used products available
Clonex Cloning Solution, 20ml - 18 Pack
Rank 83
Clonex Cloning Solution, 20ml - 18 Pack
(8)
$8.71 New
No used products available
Xtreme Gardening 721205 Mykos 2.2lbs.
Rank 84
Xtreme Gardening 721205 Mykos 2.2lbs.
(32)
$29.79 New
No used products available
Mills Nutrients Vitalize Mono Silicic Acid 1 Liter Like Fasilitor 0-0-0.8
Rank 85
Mills Nutrients Vitalize Mono Silicic Acid 1 Liter Like Fasilitor 0-0-0.8
(3)
$145.00 New
No used products available
Mad Farmer Mother of All Bloom - 1 Kilogram 2day Delivery
Rank 86
Mad Farmer Mother of All Bloom - 1 Kilogram 2day Delivery
(1)
$45.95 New
No used products available
Advanced Nutrients Revive Fertilizer 1l 1 Liter
Rank 87
Advanced Nutrients Revive Fertilizer 1l 1 Liter
(4)
$14.95 New
No used products available
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular - 1 lb
Rank 88
Xtreme Mykos Pure Mycorrhizal Inoculum, Granular - 1 lb
(31)
$22.99 New
No used products available
Athena Blended Balance (1 Gallon) – pH Buffer & Stabilizer – for Hydroponic
Rank 89
Athena Blended Balance (1 Gallon) – pH Buffer & Stabilizer – for Hydroponic
$39.95 New
No used products available
Advanced Nutrients Big Bud Powder 130g - Bloom Booster
Rank 90
Advanced Nutrients Big Bud Powder 130g - Bloom Booster
(12)
$24.29 New
No used products available
Advanced Nutrients Piranha Liquid Fertilizer - 1L
Rank 91
Advanced Nutrients Piranha Liquid Fertilizer - 1L
(6)
$56.99 New
No used products available
Hygrozyme Horticultural Enzyme Formula - 4L
Rank 92
Hygrozyme Horticultural Enzyme Formula - 4L
(1)
$15.99 New
No used products available
Xtreme Gardening Azos 12oz
Rank 93
Xtreme Gardening Azos 12oz
(17)
$38.99 New
No used products available
Technaflora B.C. Boost Plant Fertilizer - 4L
Rank 94
Technaflora B.C. Boost Plant Fertilizer - 4L
(7)
$43.88 New
No used products available
Xtreme Gardening Mykos Pure Mycorrhizal Inoculant Organic Root Enhancer 2.2 LB
Rank 95
Xtreme Gardening Mykos Pure Mycorrhizal Inoculant Organic Root Enhancer 2.2 LB
$30.42 New
No used products available
Technaflora GL56720585 B.C. Grow 4 L fertilizers 4 Liter Natural
Rank 96
Technaflora GL56720585 B.C. Grow 4 L fertilizers 4 Liter Natural
(2)
$44.99 New
No used products available
FoxFarm Grow Big 32oz Hydroponic Nutrients
Rank 97
FoxFarm Grow Big 32oz Hydroponic Nutrients
(12)
$26.99 New
No used products available
Humboldt County's Own Snow Storm Ultra 1 Quart - Plant Growth Nutrient QT
Rank 98
Humboldt County's Own Snow Storm Ultra 1 Quart - Plant Growth Nutrient QT
(2)
$46.99 New
No used products available
Nectar for The Gods Demeters Destiny Fertilizer 1quart
Rank 99
Nectar for The Gods Demeters Destiny Fertilizer 1quart
(1)
$20.79 New
No used products available
Advanced Nutrients Bud Blood 300 Grams Flower Booster Bloom Nutrient 300g
Rank 100
Advanced Nutrients Bud Blood 300 Grams Flower Booster Bloom Nutrient 300g
(5)
$60.00 New
No used products available