Liquid pH Down

Name: Lettuce Grow Liquid pH Down - Liquid pH Down
Brand: Lettuce Grow
SKU: 41640230158434
Price: 9.99 USD
Availability: InStock
Rating: 4.6774 (20 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$9.99

Quantity

Color

Black

Quantity

Description

Condition and pH balance your water with ease. Our pH Down solution contains stable phosphoric acid, allowing you to quickly adjust water from your hose or tap to its ideal pH level. Designed to support consistent water quality, it’s an ess...

Reviews

4.7

31 ratings

Plant RX

Our local tap water is so out of balance with chemicals. This product helps my plants have a fighting chance at survival.

Jeanette · August 5, 2026

Love how long this product has lasted, I have had my grow stand about 6 months. I have had to use this product regularly due to city water. So glad that a little goes a long way.

Aubree · June 8, 2026

Easy to use to keep my garden thriving

Chelsea · July 1, 2026

Delivery & Returns

Lettuce Grow

4.5 (5K)

Product description loading

This is the product description text that will appear here.

Lettuce Grow

pH Test Kit

(21)

$11.99

Lettuce Grow

Outdoor Smart Timer

(26)

$19.99

Two orange and yellow bottles of General Hydroponics pH Down liquid for adjusting hydroponic nutrient solution acidity.

Happy Hydro

GH pH Down Liquid

(20)

$8.95

Lettuce Grow

Glow Rings® Kit

(15)

$399.00

24% off

Cultivate Supply

General Hydroponics pH Down Liquid

$11.00$14.39

GroWorks

pH Down

(4)

$8.21

The Sprouting Company

4.9

(1.4K)

Monster Gardens

General Hydroponics pH Down

$9.95

Exclusive offer available

Perris Hydroponics

General Hydroponics®, pH Down, Liquid, Acid, Premium Buffering For pH Stability (1 Gallon)

$29.99$49.99

Cultivate Supply

General Hydroponics pH Up Liquid - Gallon (Case of 4)

$84.00

Go Green Aquaponics

AquaDown pH Lowering Solution

$8.95

Monster Gardens

General Hydroponics pH Up

$10.30

10% off

Hydro45

GH pH Up Liquid

$8.66$9.63

Monster Gardens

General Hydroponics pH Control Kit

(3)

$13.50

Max Warehouse

General Hydroponics Kit Organic Liquid pH Control 1 pk (Pack of 12)

$170.13$171.83

Lettuce Grow

Farmstand Nutrients

(67)

$19.99

The Hydro Bros

Growth Technology pH Down

(2)

$9.00

Lettuce Grow

Farmstand Gasket

(49)

$12.50

easyplant

4.7

(34.8K)

Tower Garden

Tower Garden Growing Clips

(5)

$22.00

Exclusive offer available

One Stop Grow Shop

Growth Technology - pH Down

(6)

$9.00

Lettuce Grow

Original Farmstand

$599.00

12% off

Cheapest Hydro

General Hydroponics® pH Down 1 Quart

(1)

$14.99$16.99

Exclusive offer available

GrowersHouse

General Hydroponics pH Up Liquid

$11.84

22% off

Cultivate Supply

General Hydroponics PRO pH

(1)

$97.00$124.86

IGWorks

General Hydroponics pH Control Kit

$23.00

Exclusive offer available

Jacuzzi Hot Tubs Rochester

Life: Liquid Ph Down 1 pt

$9.99

Cerca Cultivation

4.8

(611)

Future Harvest

Citric Down - pH Adjuster

CA$20.89

GroWell

Hydroponic pH Up & Down

(12)

$9.00

Vego Garden

4.7

(17.5K)

vego-garden-17-tall-9-in-1-large-modular-metal-raised-garden-bed-kit | Vego Garden

vego-garden-17-tall-10-in-1-jumbo-modular-metal-raised-garden-bed-kit | Vego Garden

Go Grow

Growth Technology pH Down 30% – Phosphoric Acid pH Adjuster for Hydroponics (1L & 5L)

$18.00

Lettuce Grow

Farmstand Pump

(23)

$39.99

Lettuce Grow

Water-Resistant Floor Mat

(15)

$39.99

LED Indoor Growing Lights Aeroponic Tower Indoor Growing

Tower Garden

LED Indoor Grow Lights

(19)

$325.00

36% off

Max Warehouse

PH DOWN 1QT (Pack of 12)

$99.91$155.88

Lettuce Grow

Counterstand Set (with plants)

$149.00

Exclusive offer available

Perris Hydroponics

General Hydroponics®, pH Down, Liquid, Acid, Premium Buffering For pH Stability (1 Quart)

(1)

$9.99$14.99

custom plastic bottle packaging with twist off cap for pH Down - 1 Quart

Exclusive offer available

True Leaf Market

pH Down - 1 Quart by General Hydroponics

(5)

$15.59

Trees.com

4.1

(146.6K)

HydroPros

General Hydroponics pH Down

(2)

$8.42

Advanced Nutrients pH-Down bottle, 1 liter

Exclusive offer available

Grow Time Garden Supply

Advanced Nutrients pH-Down 1L

$29.99

Exclusive offer available

One Stop Grow Shop

Growth Technology - pH Up

(1)

$7.00

Blue Ridge Hydroponics

GH Ph Down Quart

$14.99

One quart blue bottle of General Hydroponics pH Up base solution with a yellow label and white screw-on cap.

Happy Hydro

GH pH Up Liquid Quart

(5)

$12.95

Lettuce Grow

Farmstand Cleaning Kit

(31)

$24.99

English cottage touches

Collected classics with country-house charm

Lettuce Grow

Spray Bottle

(12)

$7.99

Lettuce Grow

Glow Ring® Extensions

(12)

$129.00

Cultivate Supply

General Hydroponics pH Down Liquid - Gallon (Case Of 4)

$84.00

Hydro Crop Shop

Growth Technology PH Down 81% – Phosphoric Acid pH Reducer

£4.49

Atlantis Hydroponics and Garden Supply

General Hydroponics pH Down Liquid

(2)

$13.99

Cheapest Hydro

General Hydroponics® pH Down 1 Gallon

(1)

$29.99

Atlantis Hydroponics and Garden Supply

General Hydroponics pH Up Liquid

(1)

$9.99

Monster Gardens

Cutting Edge pH Down

$10.30

Made In Cookware

4.8

(127.2K)

34% off

Canada Grow Supplies

Advanced Nutrients pH Down

(6)

CA$24.95CA$37.99

The Growers Depot

General Hydroponics® pH Control Kit

$21.99

Aquager pH Down concentrated pH adjuster bottle for hydroponic and soil garden water

20% off

Aquager Technologies

pH Down Solution (8 oz pH Adjuster)

$7.99$9.99

Lettuce Grow

Plant ID Grow Cups (12-Pack)

(41)

$11.99

20% off

BetterGrow Hydro

GH pH Down Liquid Quart

$8.16$10.20

Lettuce Grow

Dolly

(68)

$79.99

Lettuce Grow

Complete Plant Defense Kit

(4)

$39.99

Bar cart basics

Carts, glassware, and bottle storage.

20% off

BetterGrow Hydro

GH pH Down 8 oz

$5.82$7.28

General Hydroponics pH Down liquid bottle, 1 quart

Exclusive offer available

Grow Time Garden Supply

General Hydroponics pH Down Liquid 1-Quart

$12.99

24% off

Cultivate Supply

General Hydroponics pH Up Liquid

$11.00$14.39

Phelan Hydro & Garden Supply

General Hydroponics® pH Down Quart

$16.99

General Hydroponics pH Down for Indoor Gardening

21% off

IGWorks

General Hydro pH Down

$11.00$14.00

General Hydroponics pH Up liquid bottle, 1 quart

Exclusive offer available

Grow Time Garden Supply

General Hydroponics pH up Liquid 1-Quart

$12.99

General Hydroponics pH Up liquid jug, 1 gallon

Exclusive offer available

Grow Time Garden Supply

General Hydroponics pH Up Liquid 1-Gallon

$31.99

Atlantis Hydroponics and Garden Supply

General Hydroponics pH Control Kit

(3)

$19.99

Our Place

4.6

(100.7K)

Blue oven with digital display on a white background

pink non toxic ceramic nonstick always pan

Black wok with wooden handle and spatula on a white background

Lettuce Grow

Plant Corks (6-Pack)

(51)

$15.00

20% off

BetterGrow Hydro

GH pH Down Liquid Gallon

$20.36$25.44

Lettuce Grow

Indoor Grow Sleeves (12-Pack)

(20)

$11.99

Lettuce Grow

Extension Kit

(13)

$89.00

Tower Garden

Flex Dolly

(10)

$95.00

Lettuce Grow

Counterstand Refill Kit

$29.99

General Hydroponics pH Down Liquid -- Gallon

Exclusive offer available

GrowersHouse

General Hydroponics pH Down Liquid

$11.84

The curated dining table

Dinnerware, glasses, and flatware.

PowerGrow Systems & Utah Hydroponics

General Hydroponics pH UP & DOWN Control Kit - pH Adjustment & Testing Kit

$19.99

Exclusive offer available

The Hydro Tower

pH Control Kit

$21.00

Lettuce Grow

Glow Lamp

(6)

$59.99

Cheap and Easy Hydro Store

GH pH Control Kit - 4pc - 8oz pH UP, 8oz pH DOWN, 1oz Indicator, & Vial

$13.95

20% off

BetterGrow Hydro

GH pH Up Liquid Quart

$8.16$10.20

growshop.co.nz

pH Lower - Maintain Optimal Hydroponic pH & Maximise Nutrient Uptake 500ml

(1)

$14.00

Liquid pH Down

Reviews

Delivery & Returns

Lettuce Grow

Reviews

Delivery & Returns

Lettuce Grow

You might also like

pH Test Kit

Outdoor Smart Timer

GH pH Down Liquid

Glow Rings® Kit

General Hydroponics pH Down Liquid

pH Down

The Sprouting Company

General Hydroponics pH Down

General Hydroponics®, pH Down, Liquid, Acid, Premium Buffering For pH Stability (1 Gallon)

General Hydroponics pH Up Liquid - Gallon (Case of 4)

AquaDown pH Lowering Solution

General Hydroponics pH Up

GH pH Up Liquid

General Hydroponics pH Control Kit

General Hydroponics Kit Organic Liquid pH Control 1 pk (Pack of 12)

Farmstand Nutrients

Growth Technology pH Down

Farmstand Gasket

easyplant

Tower Garden Growing Clips

Growth Technology - pH Down

Original Farmstand

General Hydroponics® pH Down 1 Quart

General Hydroponics pH Up Liquid

General Hydroponics PRO pH

General Hydroponics pH Control Kit

Life: Liquid Ph Down 1 pt

Cerca Cultivation

Citric Down - pH Adjuster

Hydroponic pH Up & Down

Vego Garden

Growth Technology pH Down 30% – Phosphoric Acid pH Adjuster for Hydroponics (1L & 5L)

Farmstand Pump

Water-Resistant Floor Mat

LED Indoor Grow Lights

PH DOWN 1QT (Pack of 12)

Counterstand Set (with plants)

General Hydroponics®, pH Down, Liquid, Acid, Premium Buffering For pH Stability (1 Quart)

pH Down - 1 Quart by General Hydroponics

Trees.com

General Hydroponics pH Down

Advanced Nutrients pH-Down 1L

Growth Technology - pH Up

GH Ph Down Quart

GH pH Up Liquid Quart

Farmstand Cleaning Kit

Spray Bottle

Glow Ring® Extensions

General Hydroponics pH Down Liquid - Gallon (Case Of 4)

Growth Technology PH Down 81% – Phosphoric Acid pH Reducer

General Hydroponics pH Down Liquid

General Hydroponics® pH Down 1 Gallon

General Hydroponics pH Up Liquid

Cutting Edge pH Down

Made In Cookware

Advanced Nutrients pH Down

General Hydroponics® pH Control Kit

pH Down Solution (8 oz pH Adjuster)

Plant ID Grow Cups (12-Pack)

GH pH Down Liquid Quart

Dolly

Complete Plant Defense Kit

GH pH Down 8 oz

General Hydroponics pH Down Liquid 1-Quart

General Hydroponics pH Up Liquid

General Hydroponics® pH Down Quart

General Hydro pH Down

General Hydroponics pH up Liquid 1-Quart

General Hydroponics pH Up Liquid 1-Gallon

General Hydroponics pH Control Kit

Our Place

Plant Corks (6-Pack)