---
product_id: 2504540
title: "Prestone AF-1420 Antifreeze / Coolant Tester, Multi"
brand: "prestone"
price: "€ 24.92"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.fi/products/2504540-prestone-af-1420-antifreeze-coolant-tester-multi
store_origin: FI
region: Finland
---

# Visual rust & sediment inspection Checks boil-over safety Tests freeze protection Prestone AF-1420 Antifreeze / Coolant Tester, Multi

**Brand:** prestone
**Price:** € 24.92
**Availability:** ✅ In Stock

## Summary

> ❄️🔥 Stay cool, stay protected — test your coolant like a pro!

## Quick Answers

- **What is this?** Prestone AF-1420 Antifreeze / Coolant Tester, Multi by prestone
- **How much does it cost?** € 24.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/2504540-prestone-af-1420-antifreeze-coolant-tester-multi)

## Best For

- prestone enthusiasts

## Why This Product

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

## Key Features

- • **Boil-Over Barrier:** Ensure your coolant mix withstands extreme heat up to 387°F for peak engine performance.
- • **DIY Pro-Level Testing:** Quick, safe sample collection and easy-to-read results empower you to take control under the hood.
- • **Freeze-Proof Confidence:** Instantly verify your antifreeze’s freeze protection to avoid costly winter breakdowns.
- • **Rust & Sediment Detector:** Visual inspection feature helps you catch corrosion before it compromises your engine.
- • **Universal Fit, Universal Peace of Mind:** Compatible with all vehicles, making maintenance effortless and reliable.

## Overview

The Prestone AF-1420 Antifreeze/Coolant Tester is a compact, no-battery tool designed for quick and accurate measurement of coolant concentration and protection levels. It enables visual inspection for rust and sediment, helping prevent freeze-ups, boil-overs, and corrosion in all vehicle antifreeze systems. Lightweight and universally compatible, it’s a must-have for proactive vehicle maintenance.

## Description

Prestone Antifreeze/Coolant Tester is a professional do-it-yourself tester that easily tests for anti-freeze/anti-boil protection. Allows visual inspection for rust and sediment. It is important to maintain your antifreeze/coolant at the proper concentration to provide good corrosion protection as well as prevent freeze-ups and boil-overs. This tester provides a quick and easy method to safely collect a sample and measure coolant concentration. It also allows a visual inspection of the antifreeze while you test it. This is a low-cost way to check the condition of the antifreeze/coolant in your vehicle.

Review: Very handy useful tool, recommended purchase - This thing is so handy and inexpensive to purchase everybody should have one. Not only for mechanics, everyone should have one of this unless you never touch under the hood of your car. Makes it simple to check the concentration of coolant once you have mixed your own or done a coolant change and are replacing your coolant. Super easy to use and is cheap made but has lasted so far with multiple uses. Its easy to read and tell the concentration of the coolant mix in your system.
Review: Simple to Use - It does what it is supposed to do. There is not too much else to say. It is pretty simple to use.

## Features

- Easily tests for anti-freeze/anti-boil protection
- Allows visual inspection for rust and sediment
- Provides a quick and easy method to safely collect a sample and measure coolant concentration
- Helps in ensuring good corrosion protection
- Assists in preventing freeze-ups and boil-overs
- Fit Type: Universal Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BOA9RY |
| Best Sellers Rank | #340,685 in Automotive ( See Top 100 in Automotive ) #94 in Fuel Pressure Testers |
| Brand | Prestone |
| Brand Name | Prestone |
| Color | No Color |
| Compatible Devices | All vehicles with antifreeze/coolant system |
| Customer Reviews | 4.6 out of 5 stars 3,879 Reviews |
| Global Trade Identification Number | 00797496004697 |
| Included Components | Other Vehicle Parts( AUTO_PART ),Replacement Parts - Underhood, Engine Cooling |
| Item Dimensions | 7 x 5 x 1 inches |
| Item Type Name | Coolant Tester |
| Item Weight | 3 ounces |
| Item dimensions L x W x H | 7 x 5 x 1 inches |
| Manufacturer | Prestone |
| Model | AF-1420 |
| Number of Items | 1 |
| Part Number | AF1420 |
| Power Source | No Battery Required |
| Style | Classic |
| Style Name | Classic |
| UPC | 071153004696 097496004698 797496004697 746297288898 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 387 °F |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** Prestone
- **Color:** No Color
- **Item Weight:** 3 ounces
- **Power Source:** No Battery Required
- **Style:** Classic

## Images

![Prestone AF-1420 Antifreeze / Coolant Tester, Multi - Image 1](https://m.media-amazon.com/images/I/61DWcJtMvkL.jpg)
![Prestone AF-1420 Antifreeze / Coolant Tester, Multi - Image 2](https://m.media-amazon.com/images/I/71Sh3nVyugL.jpg)
![Prestone AF-1420 Antifreeze / Coolant Tester, Multi - Image 3](https://m.media-amazon.com/images/I/718wrtH6t7L.jpg)
![Prestone AF-1420 Antifreeze / Coolant Tester, Multi - Image 4](https://m.media-amazon.com/images/I/714GE5uECLL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it a one time use or you can test multiple cars?**
A: You can run dozens and dozens of tests on different cars. Good for many years of use. Works as it was designed to do.

**Q: Does this work with any type of coolant?**
A: This product works with any ethylenglycol-based coolant. It does not matter if the coolant is an OAT (organic), IAT (inorganic/synthetic) or HOAT (hybrid).

**Q: How accurate is this thing? I just had my coolant replaced and it’s still reading below the recommended temp.**
A: Below is good when it comes to the coolant freezing. 
Is it reading a low temp, or do you mean it's reading higher than what you need for freeze protection?

**Q: Will this work on a semi truck?**
A: As long as the coolant is ethylene glycol based.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very handy useful tool, recommended purchase
*by J***E on March 21, 2025*

This thing is so handy and inexpensive to purchase everybody should have one. Not only for mechanics, everyone should have one of this unless you never touch under the hood of your car. Makes it simple to check the concentration of coolant once you have mixed your own or done a coolant change and are replacing your coolant. Super easy to use and is cheap made but has lasted so far with multiple uses. Its easy to read and tell the concentration of the coolant mix in your system.

### ⭐⭐⭐⭐⭐ Simple to Use
*by J***R on October 13, 2025*

It does what it is supposed to do. There is not too much else to say. It is pretty simple to use.

### ⭐⭐⭐⭐ Quality and accuracy.
*by S***N on March 10, 2024*

My old Mac Tools Coolant tester finally failed after 25 plus years. I was hesitant about the quality of the rubber hose and pump on the newer testers. Not working in the automotive field anymore, I didn't have access to the Mac tool truck or Snap 0n, etc. I figured with any manufacturer, the quality won't be the same as it was decades ago as far as the rubber goes. Just my thoughts. I purchased this coolant tester from Prestone a while ago now, and it has performed very well. The reading is the almost exactly the same as on my neighbors Mac tools newer tester, and the rubber quality seems good as well. How long it will last only time will tell, but I am happy that the quality was better than I expected it to be. I only give it four stars as the rubber parts are a bit stiffer and thinner than my old Mac Tools coolant tester, but they are still are solid and flexible enough to seem well built.

## Frequently Bought Together

- Prestone AF-1420 Antifreeze/Coolant Tester
- EPAuto Spill Proof Radiator Coolant Filling Funnel Kit
- Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips (15 foil wrapped test strips), 1 Pack

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-09-25*