The Mastercool 3667 is a precision A/C system pressure gauge designed for use in automotive and HVAC refrigerant service applications. It features a silicone anti-flutter mechanism that stabilizes needle movement for accurate, easy-to-read pressure measurements. The dual-scale dial displays both PSI and In Hg vacuum readings, while an integrated temperature scale in degrees Fahrenheit supports refrigerant identification. Compatible with R12 and R134a refrigerants, this gauge is built for reliable performance in professional service environments.
Features
Silicone anti-flutter mechanism for stable, accurate needle readings
Dual-scale dial displaying PSI (0-350) and In Hg vacuum (0-30)
Integrated Fahrenheit temperature scale for refrigerant identification
Compatible with R12 and R134a refrigerants
Durable chrome/silver bezel with high-contrast black and blue dial face
Specifications
Brand: Mastercool
Part Number: 3667
Pressure Range: 0-350 psi
Vacuum Range: 0-30 In Hg
Temperature Scale: °F
Refrigerant Compatibility: R12, R134a
Anti-Flutter Type: Silicone
Shipping
- We will usually ship your order in 1 to 2 business days! Orders purchased before 2:00 pm EST may be shipped the same day.
- Your order must have a subtotal of $199 or more to be eligible for free shipping.
- The delay of your order will depend on your location and from which warehouse your order is shipped from. We will always ship your order from the closest available warehouse. Based on our experience, we estimate the transit time to be between 1 to 3 business days across Canada (excluding NWT, Yukon and Nunavut) and 2 to 5 business days to USA.
- All orders will be shipped from Canada.
- You may pick up your order at one of our warehouses, Monday to Friday, from 8 am to 5 pm. Pickup orders are usually ready within 4 hours.
Returns
We are offering a 30-day money-back guarantee!
If you are not satisfied with your purchase within 30 days of receiving the product, you can ship it back to us for a refund or exchange.
Before returning the item, kindly send us a request using the Self-Serve Return option or contact our customer support team to get your return authorization. You may contact us by email at support@mprtools.com, phone at 1-800-905-0410, or chat through our website. We are available Monday to Friday from 8 am to 5 pm ET.
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30-Day Money-Back Guarantee
It's our duty to provide superior quality tools you can trust to get the job done. If you're not fully satisfied with your order, you can request a return for a complete reimbursement.