---
product_id: 731948590
title: "GH pH Down Paper Down 3.78L"
brand: "ブランド: general hydroponics"
price: "€ 318.44"
currency: EUR
in_stock: true
category: "ブランド: General Hydroponics"
url: https://www.desertcart.pt/products/731948590-gh-ph-down-paper-down-3-78l
store_origin: PT
region: Portugal
---

# Optimized for hydroponics & soil 3.78L liquid concentrate 907g precise dosing weight GH pH Down Paper Down 3.78L

**Brand:** ブランド: general hydroponics
**Price:** € 318.44
**Availability:** ✅ In Stock

## Summary

> 🌿 Master your grow with precision pH power!

## Quick Answers

- **What is this?** GH pH Down Paper Down 3.78L by ブランド: general hydroponics
- **How much does it cost?** € 318.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/731948590-gh-ph-down-paper-down-3-78l)

## Best For

- ブランド: general hydroponics enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Size Efficiency:** 3.78L volume ensures long-lasting supply for serious growers
- • **Precision pH Control:** Easily adjust nutrient solutions for optimal plant health
- • **Safety First Formula:** Handle with care for safe, effective pH balancing
- • **Trusted Brand Quality:** General Hydroponics, a leader with 4.7-star rating from 3,398 users
- • **Versatile Application:** Perfect for soil, hydroponics, and organic growing systems

## Overview

General Hydroponics GH pH Down Paper Down is a 3.78L liquid pH reducer designed for precise adjustment of nutrient solutions in soil, hydroponic, and organic cultivation. Trusted by thousands with a 4.7-star rating, it offers a bulk supply for professional growers seeking optimal plant health and yield.

## Description

desertcart.co.jp: GH pH Down ペーハーダウン 3.78L : DIY・工具・ガーデン

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000FG0F9U |
| Amazon 売れ筋ランキング | DIY・工具・ガーデン - 211,718位 ( DIY・工具・ガーデンの売れ筋ランキングを見る ) 肥料・土壌改良剤 - 1,012位 |
| GTIN (Global Trade Identification Number) | 00793094015332 |
| UPC | 714863970218 793094015332 |
| おすすめ度 | 4.7 5つ星のうち4.7 (3,434) var |
| ブランド名 | General Hydroponics |
| メーカー型番 | HGC722125 |
| ユニット数 | 3780.0 ミリリットル |
| 品番・型番 | HGC722125 |
| 商品の形状 | 液体 |
| 商品の重量 | 2 ポンド |
| 生産国 | アメリカ合衆国 |

## Product Details

- **GTIN (Global Trade Identification Number):** 00793094015332
- **UPC:** 714863970218 793094015332
- **ブランド:** General Hydroponics
- **商品の形状:** 液体
- **商品の重量:** 2 ポンド

## Images

![GH pH Down Paper Down 3.78L - Image 1](https://m.media-amazon.com/images/I/61gukYk+JLL.jpg)

## Questions & Answers

**Q: What is the amount per gallon mixing ratio?**
A: I use up to 3-4ml per gallon sometimes, depending on my nutrients, water and stage of plant growth. It will vary depending on what you're growing and where your particular plant's needs fall on the nutrient/ph charts. For hydroponics/coir it is recommended by manufacturer to range between 5.5 and 6.5.

**Q: can you list ingredients with %.  Thank you!**
A: exact amounts are a trade secret however the MSDS on this states:Phosphoric acid 10 - 30%Ammonium dihydrogenorthophosphate 5 - 10%Citric acid 5 - 10%in comparison the dyna-gro ph down has:Phosphoric Acid H3PO4 33%Nitric Acid HNO3 11.5%That being said there are benefits to some of these ingredients. N-NitrogenP-PhosphorusK-PotassiumPhosphoric acid provides: PAmmonium dihydrogenorthophosphate provides: N and PCitric acid: other than lowering ph, does nothing useful. made from oxygen and hydrogen not in any usable form as far as I can find.Nitric Acid provides: NOverall either product seems to provide similar benefits.Dyna-gro is half the cost.

**Q: ingredients? Concentration?**
A: It’s not organic if that’s what you mean ingredients. I haven’t used this in a long time. I want to say I’d use like 20ml for 5 gallons. I switched to another branf

**Q: Is this safe for aquaponics systems?**
A: I would think so. I use it to lower the pH of the water I use to water my plants sometimes, both inside and out.

## Frequently Bought Together

- General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon
- General Hydroponics CALiMAGic 1-0-0, Concentrated Blend Of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Gallon
- General Hydroponics FloraBloom 0-5-4, Use With FloraMicro & FloraGro For A Tailor-Made Nutrient Mix, Provides Nutrients For Reproductive Growth, Ideal For Hydroponics, 1-Gallon

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-24*