---
product_id: 635837275
title: "NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent"
brand: "newtry"
price: "¥38855"
currency: JPY
in_stock: true
reviews_count: 8
category: "Newtry"
url: https://www.desertcart.jp/products/635837275-newtry-fertilizer-injector-for-drip-irrigation-0-4-4-adjustable
store_origin: JP
region: Japan
---

# 0.4%-4% adjustable dosing 3/4'' NPT universal fit Operates at 2.9-87 PSI pressure NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent

**Brand:** newtry
**Price:** ¥38855
**Availability:** ✅ In Stock

## Summary

> 🌱 Grow smarter, not harder — precision dosing for the modern green thumb!

## Quick Answers

- **What is this?** NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent by newtry
- **How much does it cost?** ¥38855 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/635837275-newtry-fertilizer-injector-for-drip-irrigation-0-4-4-adjustable)

## Best For

- newtry enthusiasts

## Why This Product

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

## Key Features

- • **Energy-Free Operation:** Water-powered design means zero electricity costs and eco-friendly gardening.
- • **Precision Nutrient Delivery:** Fine-tune your fertilizer mix from 0.4% to 4% for optimal plant growth.
- • **Seamless System Integration:** Universal 3/4'' NPT connection fits effortlessly into any drip irrigation setup.
- • **Tested & Ready Out-of-the-Box:** Pre-tested for smooth, leak-free performance so you can start growing immediately.
- • **Pressure-Resilient Performance:** Reliable operation across a wide pressure range (2.9-87 PSI) ensures consistent dosing.

## Overview

The NEWTRY Fertilizer Injector is a water-powered dosing pump designed for drip irrigation systems, offering an adjustable fertilizer injection rate between 0.4% and 4%. Featuring a universal 3/4'' NPT connection and robust operation under pressures from 2.9 to 87 PSI, it ensures consistent nutrient delivery without electricity. Ideal for gardens, greenhouses, farms, and hydroponic setups, this pre-tested, easy-to-install injector guarantees uniform plant nutrition and supports sustainable, efficient growth.

## Description

desertcart.com : NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent : Patio, Lawn & Garden

Review: Device is intended for ph5-9, but working well (so far...) with ph11 - Installed 4 months ago and working fine. Our setup has it operating up to 10 hours a day, 5 days a week. At time of purchase the desertcart listing did not mention that the injector's instructions specify the ph should be between 5 and 9. The solution I need to inject is ph11 so it was annoying to find out only after it arrived that this was outside its specs. I decided to try it anyway; the price of the device is low enough that it was an affordable experiment. So far it has been doing well. If this continues it will be excellent value for money.
Review: Accurate mix rate, no problems. - Seems pretty accurate mix rate. I tested (by weight) at 4% and 2%. Came out as 3.8% and 1.7%. Looks like I set the gauge a little low (it's not a very precise marking system). I have not used it with fertilizer yet. no leaks so far (I've only put about 20 gallons through it). I just followed the priming instructions. I built a system with mostly brass parts along the bypass, then some schedule 80 and brass for the mix loop. I also included a drain valve. It's mounted on an aluminum 1.5" angle (painted green) on two U posts. Nice and sturdy, but still moveable with a little effort. I used an RV water pressure valve at the inlet so I can control the system pressure and included a meter at the outlet so I know the pressure going into the drip system.

## Features

- [Enhance Your Garden's Growth]----Perfect for any gardening enthusiast or commercial farmer, our water-powered fertilizer injector optimizes nutrient delivery with an adjustable dosing range from 0.4%-4%. This system operates without electricity, promoting vigorous plant growth across your garden or farm.
- [Easy Fit & Reliable Operation]----With a universal 3/4" NPT connection, this doser seamlessly fits into your irrigation system and supports a flow range of 0.05-13.2 GPM. It operates reliably under pressure levels from 2.9 to 87 PSI, making it ideal for diverse planting environments from greenhouses to vegetable fields.
- [Consistent Quality in Diverse Conditions]----Say goodbye to uneven growth and nutrient distribution. This dosing pump utilizes reciprocating dynamic sealing technology, ensuring a stable chemical mixture even as water pressure and flow fluctuate, for uniform plant nutrition. The water flow rate will be reduced when going through the fertilizer injector.
- [Adaptable Across Multiple Uses]----Ideal for a variety of applications, this injector enhances not only lawns and gardens but also supports animal health, food safety, and more. Its flexibility makes it an essential tool for industries ranging from agriculture to water treatment.
- [Pre-Tested for Immediate Use]----Each injector undergoes rigorous testing with clean water to ensure smooth operation from the moment you unbox it. If it arrives slightly wet, rest assured it's brand new, not used. Optimally designed for liquid applications with a pH range of 5-9, this injector is perfect for both professional and hobbyist applications, meeting diverse needs with reliability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2XSV5JW |
| Best Sellers Rank | #115,063 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #329 in Automatic Irrigation Accessories |
| Brand | NEWTRY |
| Brand Name | NEWTRY |
| Control Type | Adjustable Control |
| Customer Reviews | 4.1 out of 5 stars 53 Reviews |
| Fit Type | Universal Fit |
| Included Components | Fertilizer Injector |
| Item Weight | 2.45 Kilograms |
| Manufacturer | NEWTRY |
| Material | POM (Polyoxymethylene) |
| Maximum Pressure | 87 Pound per Square Inch |
| Model Name | NEWTRY |
| Model Number | NEWTRY |
| Number of Pieces | 1 |
| Number of Sets | 1 |
| Plant or Animal Product Type | plastic |
| Power Source | Water Pressure-driven |
| Size | 0.4-4% |
| Special Features | Water Powered; Precise Control Ratio; Easy to Use |
| Style | Minimalist |

## Product Details

- **Brand:** NEWTRY
- **Item Weight:** 2.45 Kilograms
- **Material:** POM (Polyoxymethylene)
- **Model Name:** NEWTRY
- **Size:** 0.4-4%

## Images

![NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent - Image 1](https://m.media-amazon.com/images/I/71MNMsJKefL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Device is intended for ph5-9, but working well (so far...) with ph11
*by A***R on October 15, 2025*

Installed 4 months ago and working fine. Our setup has it operating up to 10 hours a day, 5 days a week. At time of purchase the Amazon listing did not mention that the injector's instructions specify the ph should be between 5 and 9. The solution I need to inject is ph11 so it was annoying to find out only after it arrived that this was outside its specs. I decided to try it anyway; the price of the device is low enough that it was an affordable experiment. So far it has been doing well. If this continues it will be excellent value for money.

### ⭐⭐⭐⭐⭐ Accurate mix rate, no problems.
*by M***Z on February 26, 2025*

Seems pretty accurate mix rate. I tested (by weight) at 4% and 2%. Came out as 3.8% and 1.7%. Looks like I set the gauge a little low (it's not a very precise marking system). I have not used it with fertilizer yet. no leaks so far (I've only put about 20 gallons through it). I just followed the priming instructions. I built a system with mostly brass parts along the bypass, then some schedule 80 and brass for the mix loop. I also included a drain valve. It's mounted on an aluminum 1.5" angle (painted green) on two U posts. Nice and sturdy, but still moveable with a little effort. I used an RV water pressure valve at the inlet so I can control the system pressure and included a meter at the outlet so I know the pressure going into the drip system.

### ⭐⭐⭐⭐⭐ Great unit for the money
*by P***K on October 14, 2025*

I did have some issues with the rubber gasket, but after consulting Newtry customer service, I fixed it easily. I paid relatively little (less than a third?) for this unit compared to the popular brands and it has performed flawlessly this summer.

## Frequently Bought Together

- NEWTRY Fertilizer Injector for Drip Irrigation, 0.4%-4% Adjustable Dosing Pump, 3/4'' NPT Water Powered Liquid Doser for Garden, Greenhouse, Irrigation & Hydroponic System, Farm, Grow Tent
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*