--- product_id: 213369648 title: "91049-128-4 A/C Flush Solvent, 4-Pack 1 Gallon — Professional Automotive & HVAC/R System Flush — Solvent-Based, Fast-Evaporating, Leaves No Residue, Non-Flammable, Made in USA" brand: "mastercool" price: "€ 703.78" currency: EUR in_stock: true category: "Mastercool" url: https://www.desertcart.de/products/213369648-91049-128-4-a-c-flush-solvent-4-pack-1 store_origin: DE region: Germany --- # Fast-evaporating formula Professional-grade, shop-safe solvent Made in USA, trusted quality 91049-128-4 A/C Flush Solvent, 4-Pack 1 Gallon — Professional Automotive & HVAC/R System Flush — Solvent-Based, Fast-Evaporating, Leaves No Residue, Non-Flammable, Made in USA **Brand:** mastercool **Price:** € 703.78 **Availability:** ✅ In Stock ## Summary > 🛠️ Flush like a pro — keep your A/C system flawless and failure-free! ## Quick Answers - **What is this?** 91049-128-4 A/C Flush Solvent, 4-Pack 1 Gallon — Professional Automotive & HVAC/R System Flush — Solvent-Based, Fast-Evaporating, Leaves No Residue, Non-Flammable, Made in USA by mastercool - **How much does it cost?** € 703.78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/213369648-91049-128-4-a-c-flush-solvent-4-pack-1) ## 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 - • **O-Ring Friendly Formula:** Protects seals and components, compatible with multiple refrigerants including R134a & R410a. - • **Shop-Safe & Non-Flammable:** Non-corrosive, non-flammable formula designed for busy professional environments. - • **Flexible Packaging Options:** Available in single or multi-gallon packs to fit any shop’s workflow and volume needs. - • **Precision Clean, Zero Residue:** Evaporates quickly to leave your A/C system spotless and contamination-free. - • **Trusted American Craftsmanship:** Backed by 40+ years of Mastercool expertise and U.S.-based support. ## Overview Mastercool’s A/C Flush Solvent is a professional-grade, solvent-based cleaner designed to rapidly evaporate without leaving residue, ensuring thorough removal of oil, debris, and sludge from automotive and HVAC/R A/C systems. Non-flammable and O-ring safe, it supports multiple refrigerants and comes in versatile pack sizes, all proudly made in the USA with over four decades of trusted quality. ## Description OverviewMastercool A/C Flush Solvent is a professional-use solution designed to clean and flush automotive A/C systems. It helps remove debris and sludge from A/C components, supporting proper system performance before recharge or repair.Key FeaturesThe solvent-based formula evaporates quickly and leaves no residue, helping technicians perform efficient and clean service work. It is formulated to be O-ring safe and is designed for use on A/C system components. Multiple size and pack options allow technicians and shops to choose the right quantity based on service needs.Why MastercoolMastercool has been a trusted name in automotive A/C service tools and equipment for decades. This flush solvent reflects that commitment by delivering practical, technician-focused performance with consistent product quality. Manufactured in the USA, it provides a dependable solution for A/C system maintenance.Technical SpecificationsProduct Name: A/C Flush Solvent Brand: Mastercool Application: Automotive A/C system flushing Formula Type: Solvent-based Performance: Evaporates quickly; leaves no residue Material Compatibility: O-ring safe Country of Origin: USAAvailable Configurations: 91049-32 – 32 oz 91049-32-6 – 6 pack of 32 oz 91049-128 – 1 gallon 91049-128-4 – 4 pack of 1 gallon ## Features - ✔️ PROFESSIONAL A/C SYSTEM FLUSH — AUTOMOTIVE & HVAC/R — Designed specifically for professional technicians to thoroughly clean A/C system components before recharge or repair. Effectively removes refrigerant oil, debris, and sludge from hoses, condensers, and evaporators. For professional use only. Do not flush compressors, expansion valves, orifice tubes, filter driers, or accumulators. - ✔️ NON-FLAMMABLE & NON-CORROSIVE — SAFE FOR SHOP USE — Solvent-based formula is non-flammable and non-corrosive, making it safe for use in professional shop environments where ignition sources are present. Compatible with the Mastercool 91046-A A/C System Flush Kit — do not use with CFC-based or flammable flush solvents. - ✔️ FAST-EVAPORATING — LEAVES NO RESIDUE — Evaporates quickly after flushing, leaving no residue behind to contaminate the freshly serviced system. Helps ensure a clean internal system path before recharge, reducing the risk of compressor failure or system contamination after service. - ✔️ O-RING SAFE FORMULATION — Formulated to be compatible with A/C system O-rings and seals, reducing the risk of seal damage during the flushing process. Suitable for use with R134a, R1234yf, R12, R22, and R410a systems. - ✔️ MULTIPLE SIZE & PACK OPTIONS — RIGHT QUANTITY FOR ANY SHOP — Available in 32 oz. single, 6-pack of 32 oz., 1 gallon single, and 4-pack of 1 gallon — giving individual technicians and high-volume shops the flexibility to buy the right quantity for their service needs. Use with the Mastercool 91046-A A/C System Flush Kit hardware (sold separately). - ✔️ DISPOSE PROPERLY — FOLLOW ALL APPLICABLE REGULATIONS — After flushing, dispose of used flush solvent, oil, and debris in accordance with local, state, and federal environmental regulations. After completion, flush material must be disposed of in accordance with State, Local and Federal Laws regarding chemical disposal. - ✔️ MADE IN USA BY MASTERCOOL — OVER 40 YEARS OF PROFESSIONAL QUALITY — Manufactured in the USA by Mastercool, a family-owned company that has been supplying professional A/C service tools and equipment to automotive and HVAC/R technicians for over 40 years. Backed by U.S.-based customer service and technical support. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B015MXFVBC | | Best Sellers Rank | #10,284 in Automotive ( See Top 100 in Automotive ) #50 in Air Conditioning Oils | | Brand Name | Mastercool | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.3 4.3 out of 5 stars (120) | | Global Trade Identification Number | 00700376112177 | | Included Components | 4 - 1 gal plastic bottles | | Item Form | Wipe | | Item Volume | 512 Fluid Ounces | | Manufacturer | Mastercool | | Material Features | Unscented | | Model Number | 91049-128-4 | | Number of Items | 4 | | Part Number | 91049-128-4 | | Scent | Unscented | | Size | 128 Fl Oz (Pack of 4) | | Special Features | Residue Free | | Specific Uses For Product | Air Conditioner | | Surface Recommendation | Metal | | UPC | 700376112177 | | Unit Count | 512.0 Fluid Ounces | | Warranty Description | 1 year | ## Product Details - **Brand:** Mastercool - **Item Form:** Wipe - **Material Feature:** Unscented - **Scent:** Unscented - **Specific Uses For Product:** Air Conditioner ## Images ![91049-128-4 A/C Flush Solvent, 4-Pack 1 Gallon — Professional Automotive & HVAC/R System Flush — Solvent-Based, Fast-Evaporating, Leaves No Residue, Non-Flammable, Made in USA - Image 1](https://m.media-amazon.com/images/I/71GwIxtlDiL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Frequently Bought Together - Mastercool 91049-128-4 Black/Yellow Flush Solvent, 4 Pack (1 Gallon) - Mastercool 69900 "Mastercleanse Flush Machine, 1 Pack - Mastercool 69925 Multiple Flushing and Leak Test Adapter Kit for Flush Machine, 1 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/213369648-91049-128-4-a-c-flush-solvent-4-pack-1](https://www.desertcart.de/products/213369648-91049-128-4-a-c-flush-solvent-4-pack-1) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-07-10*