---
product_id: 668437036
title: "Rain-x Windshield Washer Fluid 3.78 L"
brand: "rain-x"
price: "NZ$424"
currency: NZD
in_stock: true
reviews_count: 5
category: "Rain X"
url: https://www.desertcart.nz/products/668437036-rain-x-windshield-washer-fluid-3-78-l
store_origin: NZ
region: New Zealand
---

# Advanced water-beading tech Streak-free cleaning power Freezes down to -20°C Rain-x Windshield Washer Fluid 3.78 L

**Brand:** rain-x
**Price:** NZ$424
**Availability:** ✅ In Stock

## Summary

> 💦 Drive Clear, Drive Confident: See the Road Like Never Before!

## Quick Answers

- **What is this?** Rain-x Windshield Washer Fluid 3.78 L by rain-x
- **How much does it cost?** NZ$424 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/668437036-rain-x-windshield-washer-fluid-3-78-l)

## Best For

- rain-x enthusiasts

## Why This Product

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

## Key Features

- • **Year-Round Clarity:** Conquer rain, snow, and sleet with all-season performance that keeps your windshield spotless no matter the weather.
- • **Crystal Clear Vision:** Streak-free formula wipes away dirt, bugs, and grime without leaving residue—because your drive deserves perfection.
- • **Freeze-Proof Formula:** Engineered to prevent freezing down to -20°C (-4°F), ensuring your washer fluid works even in the harshest winters.
- • **Ready to Use Convenience:** No mixing, no hassle—just pour and go. Compatible with all vehicle windshield washer systems for effortless maintenance.
- • **Hydrophobic Water-Beading Tech:** Rain-X’s signature water-repellent technology boosts visibility by causing water to bead and roll off instantly.

## Overview

Rain-X Windshield Washer Fluid 3.78L delivers year-round windshield clarity with a streak-free formula that cleans dirt and grime while repelling water using advanced water-beading technology. It prevents freezing down to -20°C, ensuring reliable performance in cold weather. Ready to use and compatible with all vehicle washer systems, this premium fluid is a must-have for professionals who demand clear vision and safety on every drive.

## Description

All-Season Performance – Effective in rain, snow, and sleet for year-round clarity Streak-Free Formula – Cleans dirt, bugs, and road grime without leaving residue Cold Weather Protection – Prevents freezing down to -20°C (-4°F) Rain-X Water-Beading Tech – Repels water for improved visibility while driving Ready to Use – No mixing required; safe for all vehicle windshield washer systems

Review: Won't Use Another Brand - Rainx Windshield Washer Fluid has always been a practical choice for me. I have gotten it from the store many times and it works well. It does a really good job at keeping my car’s windshield clean and clear year-round. Something I have noticed about this washer fluid is the ability to not only clean dirt and grime but also to help repel water from the windshield.
Review: Love It, But It May Not Be Worth It To Everyone - I’m a big fan of rain-x brand product but effectiveness for the price is going to be up to you independently. I think this wiper fluid does a great job of cleaning mild levels of buildup, I think it costs well for the purposes of helping with water beading, and the jug fills up my entire washer reservoir when it’s empty (jeep grand Cherokee for reference). So what are the downsides? Mostly the price relative to how often you might use it. If you garage your car and really only use this in the event that some crud flies up on your windshield or to coat it right before some rain then you’re probably going to get your moneys worth. However if you park your car outside and regularly come out to bird droppings or pollen buildup and you solve that by hard squeezing your washer fluid out then this is gonna disappear quickly and you’re gonna feel money is wasted. So if you’re in that first category then buy this. If you’re in that second category then spend half as much or less on the normal stuff.

## Features

- All-Season Performance – Effective in rain, snow, and sleet for year-round clarity
- Streak-Free Formula – Cleans dirt, bugs, and road grime without leaving residue
- Cold Weather Protection – Prevents freezing down to -20°C (-4°F)
- Rain-X Water-Beading Tech – Repels water for improved visibility while driving
- Ready to Use – No mixing required; safe for all vehicle windshield washer systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IDGUM06 |
| Brand | Rain-X |
| Brand Name | Rain-X |
| Contains Liquid Contents | No |
| Contains Liquid Contents? | No |
| Country of Origin | USA |
| Customer Reviews | 4.7 out of 5 stars 958 Reviews |
| Item Volume | 3.78 Litres |
| Manufacturer | Rain-X |
| Net Quantity | 1.00 Count |
| Number of Items | 1 |
| Part Number | New |
| Size | 1 count (Pack of 1) |
| Unit Count | 1.00 Count |

## Product Details

- **Brand:** Rain-X
- **Item Volume:** 3.78 Litres
- **Net Quantity:** 1.00 Count
- **Number of Items:** 1
- **Contains Liquid Contents:** No
- **Manufacturer:** Rain-X
- **Size:** 1 count (Pack of 1)

## Images

![Rain-x Windshield Washer Fluid 3.78 L - Image 1](https://m.media-amazon.com/images/I/71biQKB0GwL.jpg)
![Rain-x Windshield Washer Fluid 3.78 L - Image 2](https://m.media-amazon.com/images/I/61NFrHb7jUL.jpg)
![Rain-x Windshield Washer Fluid 3.78 L - Image 3](https://m.media-amazon.com/images/I/41S7oS+Rn1L.jpg)
![Rain-x Windshield Washer Fluid 3.78 L - Image 4](https://m.media-amazon.com/images/I/511wTujo9AL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Won't Use Another Brand
*by B***H on 18 May 2026*

Rainx Windshield Washer Fluid has always been a practical choice for me. I have gotten it from the store many times and it works well. It does a really good job at keeping my car’s windshield clean and clear year-round. Something I have noticed about this washer fluid is the ability to not only clean dirt and grime but also to help repel water from the windshield.

### ⭐⭐⭐⭐⭐ Love It, But It May Not Be Worth It To Everyone
*by C***Z on 19 August 2025*

I’m a big fan of rain-x brand product but effectiveness for the price is going to be up to you independently. I think this wiper fluid does a great job of cleaning mild levels of buildup, I think it costs well for the purposes of helping with water beading, and the jug fills up my entire washer reservoir when it’s empty (jeep grand Cherokee for reference). So what are the downsides? Mostly the price relative to how often you might use it. If you garage your car and really only use this in the event that some crud flies up on your windshield or to coat it right before some rain then you’re probably going to get your moneys worth. However if you park your car outside and regularly come out to bird droppings or pollen buildup and you solve that by hard squeezing your washer fluid out then this is gonna disappear quickly and you’re gonna feel money is wasted. So if you’re in that first category then buy this. If you’re in that second category then spend half as much or less on the normal stuff.

### ⭐⭐⭐⭐⭐ Best wiper fluid available!
*by J***E on 12 September 2025*

My car is parked on the street under a tree and is constantly a mess. I use this to effectively clean my windshield in a flash and it leaves no residue! So easy! I only buy this!

## Frequently Bought Together

- Rain-x Windshield Washer Fluid
- Rain-X 800002250 Glass Treatment Trigger, 16 Fl Oz - Exterior Glass Treatment to Dramatically Improve Wet Weather Driving Visibility During All Weather Conditions
- Rain-X RX11806D Washer Fluid Additive-16.9 fl. oz, 500. ml

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---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-06-21*