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Item #:
80654503
MASTERCOOL - Low Side Coupler MST (282934)
Item #:
80654503
SAR 161
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Imported from USA store
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Order now and get it around Tuesday, September 22
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What Stands Out
Durable Design
Crafted with robust materials, the MASTERCOOL Low Side Coupler ensures longevity and withstands demanding HVAC applications, providing reliable performance for both professionals and DIY enthusiasts.
Precision Leak-Free
Engineered for a precise fit, this coupler minimizes the risk of leaks, ensuring efficient refrigerant transfer and maintaining system integrity, which is essential for optimal cooling performance.
Universal Compatibility
Designed to work with a variety of refrigerants and systems, the MST 282934 offers exceptional versatility, making it a go-to tool for HVAC technicians tackling diverse jobs.
Product Details
| Brand Name | Mastercool |
| Unit Count | 1 Count |
| UPC | 700376125016 |
| Number of Items | 1 |
| Manufacturer | MASTERCOOL |
| Included Components | MASTERCOOL - Low Side Coupler Mst (282934) |
| Item Type Name | Test Tool |
| Item Weight | 16 ounces (453.6 grams) |
| Model Number | 282934 |
| Manufacturer Part Number | 282934 |
| Automotive Fit Type | Universal Fit |
| Brand | Mastercool |
Who Should Buy?
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HVAC Technicians
Ideal for professionals working on air conditioning systems requiring reliable low side coupler for maintenance and diagnosis.
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Car Enthusiasts
Perfect for DIY car enthusiasts needing to recharge or diagnose automotive air conditioning systems effectively.
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Field Service Workers
Great for technicians in the field who need lightweight, portable tools for servicing mobile HVAC units efficiently.
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Non-Technical Users
Not suitable for users without technical skills or knowledge in handling refrigerant systems safely and correctly.
Product Description
MASTERCOOL - Low Side Coupler MST (282934)
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Customer Questions & Answers
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Question:
What is the purpose of the MASTERCOOL Low Side Coupler MST (282934)?
Answer: The MASTERCOOL Low Side Coupler MST (282934) is designed for refrigerant access on low-pressure side systems. It enables safe and efficient charging and recovery of refrigerants in automotive and HVAC applications. By connecting to the low side service port, technicians can monitor pressure, check for leaks, or add refrigerant. This makes it essential for routine maintenance and troubleshooting, improving the overall performance of air conditioning systems. -
Question:
Is the MASTERCOOL Low Side Coupler MST compatible with all refrigerants?
Answer: Yes, the MASTERCOOL Low Side Coupler MST (282934) is compatible with a range of refrigerants, including R-134a, R-12, and R-22. It features a durable design that withstands various pressure levels associated with these refrigerants. This versatility makes it a practical tool for technicians working with different vehicles or HVAC systems, ensuring that they can effectively manage refrigerant levels regardless of the type in use. -
Question:
How do you connect the Low Side Coupler to a refrigerant system?
Answer: Connecting the MASTERCOOL Low Side Coupler MST (282934) is straightforward. First, locate the low side service port on the vehicle or HVAC unit. Ensure that the system is not under high pressure. Align the coupler with the port and push down until it securely locks in place. On completion, follow with the necessary steps to check or add refrigerants, ensuring no leaks occur. This process aids technicians in facilitating quick and efficient service operations. -
Question:
Can the MASTERCOOL Low Side Coupler be used with both R-134a and R-1234yf systems?
Answer: The MASTERCOOL Low Side Coupler MST (282934) is specifically designed for R-134a systems. If you are working with R-1234yf, it is essential to use a coupler that is compatible with that refrigerant type, as R-1234yf requires specific handling due to differences in pressure and chemical composition. Ensure you select the correct coupler to avoid damaging the system or compromising refrigerant integrity. -
Question:
What materials are used in the construction of the MASTERCOOL Low Side Coupler?
Answer: The MASTERCOOL Low Side Coupler MST (282934) is constructed from high-quality materials such as brass and durable plastics. These materials ensure resistance to corrosion and wear, thereby extending the lifespan of the coupler. The robust design guarantees reliability during repeat usage in both professional and DIY applications, making it an essential tool in any technician's toolkit for efficient refrigerant management. -
Question:
What are the dimensions of the MASTERCOOL Low Side Coupler MST (282934)?
Answer: The exact dimensions of the MASTERCOOL Low Side Coupler MST (282934) are optimized for compatibility with standard low side service ports. While specific measurements may vary slightly, the coupler’s design is crafted to ensure a secure fit on most vehicles and HVAC systems. This compact and efficient form factor not only facilitates easier handling and storage but also enhances the overall accessibility in tight spaces during service. -
Question:
How do I maintain the MASTERCOOL Low Side Coupler MST for long-term use?
Answer: To maintain the MASTERCOOL Low Side Coupler MST (282934), ensure regular cleaning after each use to remove any refrigerant residue. Check for any signs of wear or damage, such as cracks in the plastic or leaks in the fittings. Store it in a cool, dry place to prevent corrosion. Performing these maintenance tasks enhances the coupler's lifespan and reliability, ensuring it remains effective for future refrigerant management tasks. -
Question:
What type of pressure can the MASTERCOOL Low Side Coupler handle?
Answer: The MASTERCOOL Low Side Coupler MST (282934) is designed to handle pressures up to 300 PSI, providing a reliable service for most automotive and HVAC applications. This capability allows it to effectively support refrigerant charging and recovery processes, as well as pressure checks during servicing. This ensures that technicians can work confidently knowing that the coupler can withstand the typical operational pressures associated with refrigerant systems. -
Question:
Can I use the MASTERCOOL Low Side Coupler for DIY refrigerant services?
Answer: Yes, the MASTERCOOL Low Side Coupler MST (282934) is ideal for both professionals and DIY enthusiasts. Its user-friendly design makes it accessible for anyone looking to service their air conditioning system or troubleshoot refrigerant-related issues. However, it's important to ensure proper safety precautions and knowledge about refrigerant handling to maximize effectiveness and minimize any risks during the process. -
Question:
Where can I buy MASTERCOOL - Low Side Coupler MST (282934) in Saudi Arabia?
Answer: You can purchase the MASTERCOOL - Low Side Coupler MST (282934) from Ubuy, which offers a variety of tools and equipment including specialized automotive accessories. Ubuy provides a reliable platform for acquiring quality products, ensuring you get the right coupler for your refrigerant needs while enjoying a seamless shopping experience.
Mastercool Air Conditioning Line Repair Tools 282934 Editorial Review
MASTERCOOL - Low Side Coupler MST (282934) is a versatile automotive test tool designed for universal fitment. Mastercool is known for its durable components, making this coupler a reliable choice for various automotive applications. This item weighs 16 ounces and is crafted to ensure precise testing in HVAC systems. Users have praised its build quality, highlighting its ease of use during pressure testing. The coupler is designed to connect seamlessly with various automotive systems, making it an essential tool for both professionals and DIY enthusiasts alike. Whether you are diagnosing or servicing AC systems, this low side coupler is a practical addition to your toolkit.
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Pros
- Versatile universal fit for most automotive systems
- Durable construction for long-lasting use
- Lightweight design makes it easy to handle
- Essential for accurate HVAC pressure testing
- User-friendly for both professionals and DIYers
Cons
- No additional features mentioned for this model.
Platform Trust & Buyer Confidence
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Essam
Verified buyer
“Perfect service and fast delivery.”
16-Jul-26 · via Trustpilot
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Mohamed
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“We feel very good about the delivery time, and the materials we received matched our order.”
14-Jul-26 · via Trustpilot
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Anila
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“Good experience of shopping through Ubuy.”
16 June 2026 · via Trustpilot
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Farrah
Verified buyer
“A very big Thank you to HUDA and the Ubuy Team in helping to send my order to me yesterday!! Order # 62606425316 Customer service and operations is top for this online shopping company and I am very satisfied with the way they handle issues. THANK YOU once again!!”
25 June 2026 · via Trustpilot
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Mekki
Verified buyer
“Arrive before time, excellent products”
9 July 2026 · via Trustpilot
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SAR 161
Order now and get it around Tuesday, September 22
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Features & Benefits
- High-quality product by MASTERCOOL.
- Internationally recognized for diverse, award-winning products.
- User-centric design ensures ease of use.
- Durability tested in real-world conditions.
- Meets or exceeds all required standards.
- Trustworthy performance for all applications.
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