---
product_id: 635837275
title: "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: "974 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Newtry"
url: https://www.desertcart.pl/products/635837275-fertilizer-injector-for-drip-irrigation-0-4-4-adjustable-dosing
store_origin: PL
region: Poland
---

# 0.4%-4% adjustable dosing 3/4'' NPT universal fit Operates at 2.9-87 PSI pressure 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:** 974 zł
**Availability:** ✅ In Stock

## Summary

> 🌱 Grow smarter, not harder — precision irrigation for the modern cultivator!

## Quick Answers

- **What is this?** 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?** 974 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/635837275-fertilizer-injector-for-drip-irrigation-0-4-4-adjustable-dosing)

## 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

- • **Ready Out of the Box:** Pre-tested and reliable for immediate use in gardens, greenhouses, and farms.
- • **Seamless Integration:** Universal 3/4'' NPT connection fits any drip irrigation system effortlessly.
- • **Water-Powered Efficiency:** No electricity needed—runs purely on water pressure for eco-friendly operation.
- • **Precision Nutrient Delivery:** Adjust dosing from 0.4% to 4% for tailored plant feeding.
- • **Consistent Growth, Every Time:** Dynamic sealing tech ensures uniform nutrient mix despite pressure changes.

## Overview

The NEWTRY Fertilizer Injector is a water-powered dosing pump designed for drip irrigation systems, offering adjustable nutrient injection from 0.4% to 4%. It features a universal 3/4'' NPT connection and operates reliably under pressures from 2.9 to 87 PSI. Utilizing advanced sealing technology, it ensures consistent fertilizer delivery across varying water flows, making it ideal for gardens, greenhouses, farms, and hydroponic setups. Pre-tested for immediate use, this eco-friendly device requires no electricity and supports pH ranges from 5 to 9, delivering professional-grade performance for both hobbyists and commercial growers.

## 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 | #49,201 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #247 in Automatic Irrigation Accessories |
| Brand Name | NEWTRY |
| Control Type | Adjustable Control |
| Customer Reviews | 4.2 4.2 out of 5 stars (58) |
| 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
- **Material:** POM (Polyoxymethylene)
- **Model Name:** NEWTRY
- **Size:** 0.4-4%
- **Style:** Minimalist

## Images

![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.

### ⭐⭐⭐⭐⭐ Love this product
*by B***L on March 13, 2026*

This device has saved me a ton of money and time in my greenhouse. Raising over 6500 hanging flower baskets and with the correct fertilizer application to the flowers I can see a big difference over last year. Which means more money in my pocket.

## 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 Poland*
*Store origin: PL*
*Last updated: 2026-04-26*