---
product_id: 102611212
title: "Chapin 4702 HydroFeed 32-Ounce in-Line Auto-Mix Fertilizer Injector System, 32-Ounce, Drip Irrigation System (1 Feeder/Package)"
brand: "chapin international"
price: "€ 203.47"
currency: EUR
in_stock: true
reviews_count: 9
category: "Chapin International"
url: https://www.desertcart.gr/products/102611212-chapin-4702-hydrofeed-32-ounce-in-line-auto-mix-fertilizer
store_origin: GR
region: Greece
---

# 32 oz clear tank for easy monitoring Built-in mounting bracket for secure setup O-ring seal & filter for leak-free, debris-free operation Chapin 4702 HydroFeed 32-Ounce in-Line Auto-Mix Fertilizer Injector System, 32-Ounce, Drip Irrigation System (1 Feeder/Package)

**Brand:** chapin international
**Price:** € 203.47
**Availability:** ✅ In Stock

## Summary

> 🌿 Feed your garden like a pro—smart, sleek, and leak-free!

## Quick Answers

- **What is this?** Chapin 4702 HydroFeed 32-Ounce in-Line Auto-Mix Fertilizer Injector System, 32-Ounce, Drip Irrigation System (1 Feeder/Package) by chapin international
- **How much does it cost?** € 203.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/102611212-chapin-4702-hydrofeed-32-ounce-in-line-auto-mix-fertilizer)

## Best For

- chapin international enthusiasts

## Why This Product

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

## Key Features

- • **Quick Drain & Refill:** Convenient drain valve empties leftover mix fast, so you’re always ready for the next feeding session.
- • **Leak-Proof Confidence:** Large O-ring sealed opening and rigid inlet tube with filter ensure zero mess and clog-free performance.
- • **Crystal Clear Monitoring:** Transparent 32-ounce tank lets you track fertilizer levels at a glance—never run dry mid-cycle.
- • **Plug & Play Installation:** Built-in bracket and included short hose make mounting and connecting to your drip system a breeze.
- • **Effortless Precision Feeding:** Auto-mixes liquid & granular fertilizers right at the water source for consistent garden nourishment.

## Overview

The Chapin 4702 HydroFeed is a 32-ounce in-line fertilizer injector designed for drip irrigation systems. It features a clear tank for easy fertilizer level monitoring, a funnel-shaped top for simple refills, and a built-in mounting bracket for secure installation. Its leak-proof O-ring seal and in-tank filter ensure clean, debris-free mixing, while the drain valve allows quick emptying after use. Ideal for liquid, granular, or fish emulsion fertilizers, it helps maintain a lush, well-fed garden with minimal hassle.

## Description

The Chapin HydroFeed fertilizer injector is a patent-pending design filled with features for use with sprinklers and direct hose spray applications. Mixes water with liquid, granular and fish emulsion products at the water source. This irrigation system comes with a clear tank for easy monitoring of usage, a large opening with O-ring to prevent leakage, funnel-top mouth for easy filling, built-in mounting bracket for easy set up next to water spigot, rigid inlet tube with in-tank filter for debris-free mixing and drain with valve to quickly empty remaining product and water from the tank. Great way to conserve water and still have a lush, green, well-fed landscape or garden.

Review: Works as designed. Easy to set up. No troubleshooting/fiddling needed. - My setup: I use these with a drip irrigation system in my garden, and smart valves installed after these units to turn on/off the flow. I have a backflow preventer installed upstream of each unit to make sure I don't get fertilizer contaminating the main water source. I use jacks 20-20-20 fertilizer dissolved in water, I have not tried putting solid fertilizer pellets in, which the instructions say should work. Comes with a short hose (about 1ft (30cm)) which is handy for connecting to a downstream valve or splitter. Basic thoughts: These units cause no issues with the drip system or the smart valves and are easy to fill up. I let the regular water flow through these all the time and just add fertilizer whenever I want to feed the garden. If you only use with fertilizer, downstream valves or irrigation systems might be affected by the fertilizer. With colored fertilizer its really easy to tell when the fertilizer is gone as you can see the color slowly fade as fresh water is mixed into the bowl. You need to be able to shut off water to the unit in order to add fertilizer, so its handy if the upstream valve is close to where you install the unit, but it won't hurt anything if you have to walk back and forth during the refilling to shut the water on/off. The unit has a plug on top, which screws out to let you refill without taking the bowl off. There is a dish in the black plastic top to help funnel the fertilizer down into the unit. I find that this is a really slow way to fill it up. The liquid tends to form an air seal over the hole, and you have to wait for it to bubble down and break the seal, which is pretty slow. I find it much easier to just take the whole bowl off, fill the bowl, and then put it back on the unit. These are quite tall, more than 1ft (30cm), so they might be difficult if you have a tight space where you want to use them. If so you might want to look a the options with smaller bowls, as those should be identical, with just shorter bowls. A full load of liquid fertilizer will be flushed out in two 15min drip watering sessions of 8 4ft/9ft (1.3mx3m) garden beds fed by 0.5gph 6in emitter drip line. I haven't kept close track, so it might go faster than that.
Review: Plumbers Tape a must! Excellent Injector - I gave the fertilizer injector a 3-star rating on easy to install and easy to use because the rubber gaskets do not work properly. I tried every combination that I can think of by putting the blue gasket on the top. And the black gasket was positioned under the basket. And when I use the fertilizer injector the gaskets failed and water was spraying from the device putting fertilizer all over my patio I switch the gaskets around multiple times they did not work at all the device leaks severely losing fertilizer products by spraying them out of the top of the fertilizer injector. I fixed the issue by using plumbers tape you must use enough plumbers tape just satisfy the Deep threads on the injector. I went around the threads four times. No more leaking. Product suggestion: include some plumbers tape with your fertilizer injectors. The tape works 100% your gaskets failed every time and anyway I tried.

## Features

- 32-Ounce clear tank with funnel-shaped head for easy filling and monitoring usage
- Ideal for use with liquid or granular concentrates and/or fish emulsion applications
- Built-in bracket for secure mounting to walls or posts
- Large opening with O-ring for leak-free operation
- Rigid inlet tube with filter for debris-free mixing, drain plug with valve to quickly empty the tank after each use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D9W9C5P |
| Assembly required | No |
| Batteries required | No |
| Best Sellers Rank | #53,254 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #136 in Automatic Irrigation Accessories |
| Brand | Chapin International |
| Capacity | 32 Fluid Ounces |
| Color | No Color |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,374) |
| Global Trade Identification Number | 00023883047023 |
| Included Components | Unit^Instruction Guide |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.13 pounds |
| Item model number | 4702 |
| Manufacturer | Chapin International |
| Material | Plastic |
| Number of pieces | 1 |
| Product Dimensions | 6.1 x 4.75 x 15.8 inches |
| Shape | Cylindrical |
| UPC | 023883047023 |

## Product Details

- **Brand:** Chapin International
- **Capacity:** 32 Fluid Ounces
- **Color:** No Color
- **Item Weight:** 3.13 Pounds
- **Material:** Plastic

## Images

![Chapin 4702 HydroFeed 32-Ounce in-Line Auto-Mix Fertilizer Injector System, 32-Ounce, Drip Irrigation System (1 Feeder/Package) - Image 1](https://m.media-amazon.com/images/I/71dk3JoyIsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as designed. Easy to set up. No troubleshooting/fiddling needed.
*by T***N on August 20, 2024*

My setup: I use these with a drip irrigation system in my garden, and smart valves installed after these units to turn on/off the flow. I have a backflow preventer installed upstream of each unit to make sure I don't get fertilizer contaminating the main water source. I use jacks 20-20-20 fertilizer dissolved in water, I have not tried putting solid fertilizer pellets in, which the instructions say should work. Comes with a short hose (about 1ft (30cm)) which is handy for connecting to a downstream valve or splitter. Basic thoughts: These units cause no issues with the drip system or the smart valves and are easy to fill up. I let the regular water flow through these all the time and just add fertilizer whenever I want to feed the garden. If you only use with fertilizer, downstream valves or irrigation systems might be affected by the fertilizer. With colored fertilizer its really easy to tell when the fertilizer is gone as you can see the color slowly fade as fresh water is mixed into the bowl. You need to be able to shut off water to the unit in order to add fertilizer, so its handy if the upstream valve is close to where you install the unit, but it won't hurt anything if you have to walk back and forth during the refilling to shut the water on/off. The unit has a plug on top, which screws out to let you refill without taking the bowl off. There is a dish in the black plastic top to help funnel the fertilizer down into the unit. I find that this is a really slow way to fill it up. The liquid tends to form an air seal over the hole, and you have to wait for it to bubble down and break the seal, which is pretty slow. I find it much easier to just take the whole bowl off, fill the bowl, and then put it back on the unit. These are quite tall, more than 1ft (30cm), so they might be difficult if you have a tight space where you want to use them. If so you might want to look a the options with smaller bowls, as those should be identical, with just shorter bowls. A full load of liquid fertilizer will be flushed out in two 15min drip watering sessions of 8 4ft/9ft (1.3mx3m) garden beds fed by 0.5gph 6in emitter drip line. I haven't kept close track, so it might go faster than that.

### ⭐⭐⭐⭐⭐ Plumbers Tape a must! Excellent Injector
*by D***C on July 28, 2020*

I gave the fertilizer injector a 3-star rating on easy to install and easy to use because the rubber gaskets do not work properly. I tried every combination that I can think of by putting the blue gasket on the top. And the black gasket was positioned under the basket. And when I use the fertilizer injector the gaskets failed and water was spraying from the device putting fertilizer all over my patio I switch the gaskets around multiple times they did not work at all the device leaks severely losing fertilizer products by spraying them out of the top of the fertilizer injector. I fixed the issue by using plumbers tape you must use enough plumbers tape just satisfy the Deep threads on the injector. I went around the threads four times. No more leaking. Product suggestion: include some plumbers tape with your fertilizer injectors. The tape works 100% your gaskets failed every time and anyway I tried.

### ⭐⭐⭐⭐ Works good with a hi flow of water but not as efficient with a low flow .
*by P***. on February 1, 2025*

Easy to install. One problem I’m having is I’m not putting a hi flow of water on my drip system so the siphon system on the fertilizer doesn’t extract fertilizer as fast as needed .

## Frequently Bought Together

- Chapin International Chapin HydroFeed 4702, 32 Ounce, No Color
- Flexzilla Garden Lead-In Hose 5/8 in. x 3 ft., Heavy Duty, Lightweight, Durable, ZillaGreen - HFZG503YW-E

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-08*