---
product_id: 30213639
title: "General Hydroponics pH 7.0 Calibration Solution 8 oz, pH 4.01 Calibration Solution 8 oz, pH Control Kit"
brand: "general hydroponics"
price: "293 Lei"
currency: RON
in_stock: false
reviews_count: 5
url: https://www.desertcart.ro/products/30213639-general-hydroponics-ph-7-0-calibration-solution-8-oz-ph
store_origin: RO
region: Romania
---

# General Hydroponics pH 7.0 Calibration Solution 8 oz, pH 4.01 Calibration Solution 8 oz, pH Control Kit

**Brand:** general hydroponics
**Price:** 293 Lei
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** General Hydroponics pH 7.0 Calibration Solution 8 oz, pH 4.01 Calibration Solution 8 oz, pH Control Kit by general hydroponics
- **How much does it cost?** 293 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/30213639-general-hydroponics-ph-7-0-calibration-solution-8-oz-ph)

## Best For

- general hydroponics enthusiasts

## Why This Product

- Trusted general hydroponics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used. The pH Control Kit by General Hydroponics provides everything you need for testing the pH level of the nutrient solution in your hydroponic system. pH control is essential for stimulating vigorous plant growth. Vital elements in nutrient solution having pH that is too high (basic) or too low (acidic) cannot be properly absorbed by plants. Incorrect nutrient solution pH can cause slow growth, sickly plants and low yields. The kit contains pH UP (potassium hydroxide), pH DOWN (phosphoric acid), pH Test Indicator, and a test vial. To test, fill the vial halfway with nutrient solution, add 3 drops of pH Test Indicator per 5 mL of solution, and observe the coloration of the liquid in the test vial. Using either pH UP or pH DOWN, adjust the nutrient solution in your reservoir by adding small amounts of UP or DOWN with frequent re-testing to achieve the desired pH range (typically 5.5 to 6.5 for hydroponics). More information on pH, detailed directions, and a pH nutrient availability chart are included.

## Images

![General Hydroponics pH 7.0 Calibration Solution 8 oz, pH 4.01 Calibration Solution 8 oz, pH Control Kit - Image 1](https://m.media-amazon.com/images/I/51R5PUTLrJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Always my go to products for pH control and Meter Maintenance!
  

*by S***X on Reviewed in the United States on June 28, 2019*

Works consistently year round for my pH and Meter Maintenance!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Punctuality
  

*by L***E on Reviewed in the United States on February 16, 2019*

Punctuality

### ⭐ 1.0 out of 5 stars







  
  
    Buyer beware
  

*by E***2 on Reviewed in the United States on October 8, 2019*

Only sent 2 bottles out of the 5! Dont get scammed by the price

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---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-21*