---
product_id: 276927883
title: "ITW-RX11806D Windshield Washer Fluid Additive 500 ml"
brand: "rain-x"
price: "$52"
currency: NZD
in_stock: true
reviews_count: 3
category: "Rain X"
url: https://www.desertcart.nz/products/276927883-itw-rx11806d-windshield-washer-fluid-additive-500-ml
store_origin: NZ
region: New Zealand
---

# Instant Rain-X technology activation 500 ml concentrated formula Streak-free, alcohol-free protection ITW-RX11806D Windshield Washer Fluid Additive 500 ml

**Brand:** rain-x
**Price:** $52
**Availability:** ✅ In Stock

## Summary

> 🌧️ See the road like never before with Rain-X clarity!

## Quick Answers

- **What is this?** ITW-RX11806D Windshield Washer Fluid Additive 500 ml by rain-x
- **How much does it cost?** $52 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/276927883-itw-rx11806d-windshield-washer-fluid-additive-500-ml)

## 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

- • **Compact Powerhouse:** 500 ml bottle delivers long-lasting windshield protection
- • **Safe & Streak-Free:** Alcohol-free formula ensures a spotless, streak-free finish
- • **Effortless Application:** Simply add to any washer fluid or water for immediate effect
- • **Crystal Clear Vision, Always:** Instantly applies Rain-X technology for superior water repellency
- • **Drive Confidently, Rain or Shine:** Enhances visibility, safety, and comfort on every journey

## Overview

Rain-X ITW-RX11806D is a 500 ml windshield washer fluid additive that instantly applies Rain-X water-repellent technology. This alcohol-free, streak-free formula enhances driving visibility and safety by creating a protective barrier on your windshield. Easy to use with any washer fluid or water, it’s a must-have for every driver seeking superior glass care and clear vision in all weather conditions.

## Description

- simply add rain‑x washer fluid additive to water or any windshield washer fluid to apply rain‑x technology. - instantly applies rain‑x technology to the windshield - enhances driving visibility, safety and comfort

Review: Excellent - Recommend
Review: Recommended - Great product using for last three years.

## Features

- Rain‑x windshield washer fluid additive applies rain‑x technology
- Product features
- Size: 500 ml
- Brand: Rainx
- Instantly applies rain‑x technology to the windshield

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BPTVTK |
| Best Sellers Rank | #1,539 in Automotive ( See Top 100 in Automotive ) #10 in Glass Care Products |
| Brand | Rain-X |
| Brand Name | Rain-X |
| Contains Liquid Contents? | Yes |
| Customer Reviews | 4.5 out of 5 stars 8,610 Reviews |
| Global Trade Identification Number | 00079118118013 |
| Included Components | 1 bottle |
| Item Form | Spray |
| Item Type Name | Washer Fluid |
| Item Volume | 16.9 Fluid Ounces |
| Item Weight | 0.3 Ounces |
| Item form | Spray |
| Item height | 24.1 centimeters |
| Item volume | 16.9 Fluid Ounces |
| Manufacturer | Rainx |
| Material Features | Spray |
| Material Type Free | Alcohol Free |
| Material features | Spray |
| Number of Items | 1 |
| Scent | Unscented |
| Special Features | Streak Free |
| Specific Uses For Product | Windshield |
| Specific uses for product | Windshield |
| Surface Recommendation | Glass |
| UPC | 079118118013 |
| Unit Count | 500 Milliliters |

## Product Details

- **Brand:** Rain-X
- **Item form:** Spray
- **Material features:** Spray
- **Scent:** Unscented
- **Specific uses for product:** Windshield

## Images

![ITW-RX11806D Windshield Washer Fluid Additive 500 ml - Image 1](https://m.media-amazon.com/images/I/51cNcELxXJL.jpg)

## Questions & Answers

**Q: I love the how well the standalone gallon rain-x jugs work.will adding this to non-rain-x fluid make it work just as well as standalone? or not quite?**
A: be cautious i had a washer fluid i added this to and 24 hours later the near as i could tell the rainx reacted with the blue dye in the washer fluid and i had clear washer fluid with a layer of blue sticky slime floating on top of it  i have only had it happen once but might mix this in a jug with you preferred brand of washer fluid and let it set for a day before you add it to your vehicle reservoir to make sure it wont react the same way

**Q: Does this product work well with de-icer washer fluid? Or should I stick to the original glass treatment?**
A: It will work with anything, if you want deicing, you must use it with a deicing washer fluid as a base, or just put 1/2 a bottle of rubbing alcohol in a gallon of water then add 4 oz RainX... the RainX on it's own does a great job as a cleaning fluid, but will freeze without some kind of additive

**Q: Everywhere I look it says don’t add just water to the tank can you or can you not just mix with water?**
A: Yes, you can mix it with plain water - it says so right in the description. I suggest using distilled water though, because the minerals in tap water might eventually block up your lines.

**Q: Does this leave hard-to-remove stains on car? Clog windshield washer nozzles? Leave a hard-to-remove dirty film in windshield corners?**
A: Yes!  Has left bad film and water spots similar to hard water spots on the parts of the glass the wipers don't reach. Washed my windshield at the gas station and it did not come off.  I am pissed.   Probably going to return product and contact rain x for how to clean my windshield.  Also leaves a hard water like stain in a line where right side wiper stops in middle of windshield.   I do not recommend this product .

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent
*by S***Y on 30 January 2024*

Recommend

### ⭐⭐⭐⭐⭐ Recommended
*by A***G on 10 July 2021*

Great product using for last three years.

### ⭐ DO NOT MAKE THE SAME MISTAKE I DID
*by V***C on 31 March 2024*

This product leaves a horrible spray residue that is very hard to remove. I followed the recommended ratio and today it rained slightly but enough to use the wipers. Oh boy, was I in for a surprise. It took an hour of elbow grease to remove all the overspray from my car body. Car shampoo alone won’t remove it (it’s water repellant after all). The only way was hard pressure and lots of micro fiber toweling to get rid of the incredible gunk that matched the V spray pattern of the windshield washer. I hope my PPF is not permanently ruined by the chemical residue. I can see indentations from the same residue spots that I removed. Avoid this product! I would return this junk of a bottle if I could.

## Frequently Bought Together

- Rain-X RX11806D Washer Fluid Additive-16.9 fl. oz, 500. ml
- 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 5071268 2-in-1 Glass Cleaner and Rain Repellant, 23 oz. (Pack of 1) - Provides a Streak-Free Clean for Automotive Glass While Preventing Sleet, Snow, Ice, and Road Spray Build Up

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-23*