General Hydroponics
PH up Gallon
Best solution for serious growers needing precise nutrient pH control.
Optimize your plant's nutrient uptake with GH pH Up, a gallon-sized base solution designed to precisely raise low pH levels in your nutrient solutions. Formulated with potassium hydroxide and potassium carbonate, this liquid concentrate allows for careful, incremental adjustments, ensuring your hydroponic or soil-based systems maintain the ideal pH range for healthy growth and maximum nutrient absorption. It's an essential tool for growers seeking to fine-tune their feeding regimen for optimal plant health and yield.
$27.96
Owner Satisfaction
4.6
/ 5
Category Rank
1927
/ 4352
#1927 in Fertilizers
Price vs Category Average
-55%
Below average
Weight
6
/ lbs
Who it's for
- Professional growers prioritizing consistent, reliable results
- Precision-focused growers needing minimal nutrient reservoir disruption
- Commercial cultivators seeking long-term cost efficiency
Who should skip it
- Safety-conscious users avoiding harsh chemical handling
- Beginners prone to accidental measurement errors
- Home hobbyists with limited storage space
Performance breakdown
Adjustment Precision
Highly concentrated formula allows for minute, controlled pH shifts.
Volume Efficiency
The gallon format provides exceptional value for high-frequency commercial growers.
Solubility Speed
Liquid concentrate integrates rapidly into nutrient reservoirs without leaving residue.
Chemical Stability
Potassium-based blend maintains consistent pH levels over extended feeding cycles.
Ease of Handling
Heavy gallon jug requires careful pouring to avoid accidental over-dosing.
Nutrient Compatibility
Works seamlessly with most synthetic and organic-based hydroponic nutrient lines.
Key Specs
Weight
6 lbs
Dimensions
6 × 12 × 10.15 in
Active Ingredients
potassium hydroxide and potassium carbonate
Package Type
Gallon
SKU
793094015233
Fertilizer Form
Liquid Concentrate
Fertilizer Type
pH Adjuster
Fertilizer Source
Synthetic
Features
- Effectively raises low nutrient pH levels
- Contains potassium hydroxide and carbonate
- Allows precise, incremental pH adjustment
- Optimizes nutrient availability for plants
- Essential for hydroponic systems
- Gallon size for extended use
- Ensures optimal nutrient absorption
- Liquid concentrate formula
What customers say
General Hydroponics PH Up is a trusted staple for nutrient management, praised for its exceptional concentration and long term value. Users find the gallon size offers significant cost effectiveness, as only minimal doses are needed to quickly and accurately stabilize pH levels. This dependable performance ensures optimal growing conditions with fewer adjustments, making it a reliable and economical choice for growers seeking consistent results without constant intervention.
Know before you buy
This formula uses a blend of potassium hydroxide and potassium carbonate to effectively raise the pH levels of your nutrient solution.
Yes, this concentrate is versatile and safe for use in both hydroponic setups and traditional soil-based gardening, including vegetables, flowers, and shrubs.
Because this is a concentrated liquid, add it in very small, incremental amounts to your water. Always test the pH after each addition and allow the solution to circulate thoroughly before measuring again.
While its primary purpose is pH adjustment, the potassium-based formula does introduce a small amount of potassium to your nutrient solution, which is a vital macronutrient for plant health.
Yes, it is suitable for acid-loving plants, provided you are using it to correct a pH level that has dropped too low. It helps bring the environment back into the optimal range for nutrient uptake.
The full gallon container weighs approximately 6 pounds, making it a substantial supply for growers who need to make frequent adjustments.
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