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Professional-grade tools built for performance, durability, and precision.
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Mastercool
1/4" FL to R1234YF Conversion Kit
Original price was: $93.86.$68.87Current price is: $68.87.
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Mastercool
1/4" FL-F (7/16-20") X 1/2" Acme-M R134a Connector
Original price was: $9.82.$5.11Current price is: $5.11.
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Mastercool
1/4" SAE Gasket for Charging Hoses
Original price was: $5.51.$2.86Current price is: $2.86.
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Mastercool
13mm-M x 13mm-F Low-Side Coupler Easy Connect Oil Injector
Original price was: $97.89.$50.97Current price is: $50.97.
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Mastercool
30LB DOT TANK W 1/4 FL 2 WAY V
Original price was: $430.27.$137.10Current price is: $137.10.
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Mastercool
3CFM SINGLE STAGE VACUUM PUMP
Original price was: $352.56.$138.88Current price is: $138.88.
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Mastercool
4 Pc. O-rings for Aluminum Manifolds
Original price was: $4.46.$1.52Current price is: $1.52.
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Mastercool
4-in-1 Lever Style 180° Tube Bender
Original price was: $54.96.$28.61Current price is: $28.61.
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Mastercool
4.75mm Metric Bubble Flaring Die Set
Original price was: $40.73.$21.20Current price is: $21.20.
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Mastercool
45° Flaring Cone
Original price was: $17.54.$8.92Current price is: $8.92.
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Mastercool
52234-Bt Digital Thermometer/Hygrometer With Bluetooth Wireless Technology
Original price was: $71.75.$35.74Current price is: $35.74.
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Mastercool
60" Yellow R134a Hose with Shut-Off Valve, 1/2" Acme-F
Original price was: $39.60.$11.42Current price is: $11.42.
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Built to Last
Premium materials and rigorous testing deliver tools that stand up to the toughest jobs.
Precision Engineered
Designed for accuracy and performance so you can work with confidence.
Warranty Support
Tools backed by manufacturer warranty and dependable service.
Trusted by Pros
Chosen by mechanics, tradespeople, contractors, and serious DIYers.
Built by Pros.
Built for Work.
Mastercool tools are built for demanding jobs, trusted by professionals, and ready for serious projects.
- Engineered for strength, durability, and precision
- Built for professionals and serious DIYers
- Trusted across shops, jobsites, garages, and workbenches
Explore the Complete Lineup
Browse all Mastercool tools and find the right tool for every job.
Frequently Asked Questions
Contact Support ›What warranty comes with Mastercool tools?
Warranty coverage varies by product. Check the individual product page for warranty details, or contact our team for help.
Where are Mastercool tools made?
Manufacturing details vary by product line. Review the product specifications or contact support for help.
Do you offer replacement parts and service?
Many products support replacement parts or service options. Contact OurToolCrib support to find the right part.
Need help finding the right Mastercool tool?
Our support team can help you compare options and find the right tool for your project.