Mastercool 91049-32 A/C Flush Solvent, 32 oz - Professional Automotive & HVAC/R System Flush
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Description
xMastercool 91049 A/C Flush Solvent — Professional-grade cleaning for automotive and HVAC/R systems
Designed for technicians who demand thorough pre-recharge cleaning, the Mastercool 91049 A/C Flush Solvent helps remove refrigerant oil, debris, and sludge from hoses, condensers, and evaporators. Available in 32 oz, 1 gallon, and multi-pack options, this solvent-based formula evaporates quickly and leaves no residue, supporting a clean path for the next service step. Use as part of a complete flushing workflow with the Mastercool 91046-A A/C System Flush Kit (sold separately).
Key benefits for your shop
- ✔️ Fast-evaporating formula that leaves no residue behind, helping reduce contamination risk after service.
- ✔️ Non-flammable and non-corrosive, promoting safer use in typical shop environments.
- ✔️ O-ring safe formulation, designed to minimize seal damage across multiple refrigerants.
- ✔️ Compatible with R134a, R1234yf, R12, R22, and R410a systems for broad applicability.
- ✔️ Flexible packaging: 32 oz single, 6-pack of 32 oz, 1 gallon single, or 4-pack of 1 gallon.
- ✔️ Designed to pair with Mastercool 91046-A for a streamlined flushing workflow.
- ✔️ Dispose of used solvent and debris in accordance with local, state, and federal regulations.
Smart workflow integration
In real-world service, technicians flush A/C system components before recharge to clear refrigerant oil, debris, and sludge. The solvent’s quick evaporation supports faster turnarounds while maintaining a clean internal path. Note: avoid flushing compressors, expansion valves, orifice tubes, filter driers, or accumulators to prevent potential damage.
Choosing the right size or pack helps align with your shop’s throughput, whether you’re a solo technician or operating a high-volume bay. When used with the Mastercool 91046-A kit, it offers a cohesive, ready-to-use flushing solution that supports consistent results across jobs.
Made in the USA with decades of expertise
Mastercool has over 40 years of professional tool-making experience. This solvent is produced in the USA by a family-owned company that serves automotive and HVAC/R technicians worldwide, backed by U.S.-based customer service and technical support.
FAQ
Q: What refrigerants is the Mastercool 91049 compatible with?
A: Compatible with R134a, R1234yf, R12, R22, and R410a; designed for use with the 91046-A Flush Kit.
Q: What sizes are available and how should I dispose of used solvent?
A: Available as 32 oz, 6-pack of 32 oz, 1 gal, and 4-pack of 1 gal; dispose per local, state, and federal regulations.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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