---
product_id: 136008305
title: "Mastercool 91049-128 Black/Yellow Flush Solvent, 1 Gallon"
brand: "mastercool"
price: "AR$284104"
currency: ARS
in_stock: true
reviews_count: 10
category: "Mastercool"
url: https://www.desertcart.com.ar/products/136008305-mastercool-91049-128-black-yellow-flush-solvent-1-gallon
store_origin: AR
region: Argentina
---

# Fast evaporation O-Ring safe formula Made in USA quality Mastercool 91049-128 Black/Yellow Flush Solvent, 1 Gallon

**Brand:** mastercool
**Price:** AR$284104
**Availability:** ✅ In Stock

## Summary

> 🛠️ Clean fast, cool smarter — flush like a pro!

## Quick Answers

- **What is this?** Mastercool 91049-128 Black/Yellow Flush Solvent, 1 Gallon by mastercool
- **How much does it cost?** AR$284104 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/136008305-mastercool-91049-128-black-yellow-flush-solvent-1-gallon)

## Best For

- mastercool enthusiasts

## Why This Product

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

## Key Features

- • **Clog-busting power:** Effectively removes stubborn debris and sludge to restore peak performance.
- • **Pro-grade protection:** Solvent-based yet non-corrosive and O-Ring safe to preserve your components.
- • **Swift & spotless flush:** Evaporates quickly, leaving zero residue for a pristine A/C system.
- • **Non-flammable peace of mind:** Safe to use with no fire hazards, perfect for professional environments.
- • **Trusted American craftsmanship:** Proudly made in the USA, ensuring reliability and quality.

## Overview

Mastercool 91049-128 is a professional-grade, solvent-based A/C flush that quickly removes debris and sludge without leaving residue. It’s O-Ring safe, non-flammable, and non-corrosive, making it ideal for maintaining and restoring automotive A/C systems. Proudly made in the USA, this 1-gallon flush ensures efficient, reliable cleaning for lasting cooling performance.

## Description

• Effectively removes debris and sludge from A/C components • Solvent-based • Evaporates quickly • Leaves no residue • For professional use • O-Ring safe • Non-Flammable • Non-Corrosive • Flush any A/C system • Made in USA

Review: Works Fine - I just flushed the lines and front Evap Core from a 2010 Dodge Grand Caravan. Fluid cleans well and evaporates fast. Evap Core was plugged, this flush broke through the plug very quickly. I didn't get any residual oily film like other users have reported. It did the job it's designed to do and did it well.
Review: It works - Worked very well and saved money on the gal. Size

## Features

- Effectively removes debris and sludge from a/c components
- Solvent-based
- Evaporates quickly
- Leaves no residue
- O-Ring safe

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00RVZ6GC8 |
| Best Sellers Rank | #84,023 in Automotive ( See Top 100 in Automotive ) #192 in Air Conditioning Line Repair Tools |
| Brand | Mastercool |
| Customer Reviews | 4.2 4.2 out of 5 stars (108) |
| Date First Available | January 6, 2015 |
| Item Weight | 6.8 pounds |
| Item model number | 91049-128 |
| Manufacturer | Mastercool |
| Manufacturer Part Number | 91049-128 |
| Model | 91049-128 |
| Product Dimensions | 10.5 x 5.5 x 5.5 inches |

## Images

![Mastercool 91049-128 Black/Yellow Flush Solvent, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71ZQ-aallYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Fine
*by K***S on June 13, 2022*

I just flushed the lines and front Evap Core from a 2010 Dodge Grand Caravan. Fluid cleans well and evaporates fast. Evap Core was plugged, this flush broke through the plug very quickly. I didn't get any residual oily film like other users have reported. It did the job it's designed to do and did it well.

### ⭐⭐⭐⭐⭐ It works
*by J***. on January 8, 2025*

Worked very well and saved money on the gal. Size

### ⭐⭐⭐ Hard to remove.
*by A***R on June 21, 2025*

Used this product and did nitrogen flush on an older line set that ran to the attic. It did clean but it’s very hard to remove it out of the lines and get it fully dry. Even after flushing, blowing out lines with nitrogen I could not get my microns under 1600. Ran half of my nitrogen bottle through the outflow line to the supply with both cores removed. Only using enough psi to feel it coming out of supply service port. Had to empty roughly 2 80cf bottles just to get everything out and down to proper microns. The Vaccum pump had little to no effect on boiling off any of this solution. I ran my pump on and off for 2 days with little effect. If you use this you better have a lot of nitrogen. Honest review here with changing my own ac system.

## Frequently Bought Together

- Mastercool 91049-128 Black/Yellow Flush Solvent, 1 Gallon
- FOUR UNCLES AC Flush Kit - Air Conditioner System Cleaning Tool Set with Stainless Steel Canister and Nylon Hose & Flushing Spray Gun for R134a R12 R22 R410a R404a

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**Shop now:** [https://www.desertcart.com.ar/products/136008305-mastercool-91049-128-black-yellow-flush-solvent-1-gallon](https://www.desertcart.com.ar/products/136008305-mastercool-91049-128-black-yellow-flush-solvent-1-gallon)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-02*