The Mastercool 3694 A/C System Pressure Gauge Set is a professional-grade manifold gauge set designed for diagnosing and servicing automotive and commercial air conditioning systems. Built around a durable brass manifold body, this set delivers accurate pressure readings on both the high and low sides of an A/C circuit. The set includes color-coded hoses and quick-connect couplers for efficient, leak-free connections during refrigerant service operations. Its robust construction and intuitive layout make it a reliable choice for HVAC and automotive technicians.
Features
Dual-gauge manifold design with a dedicated blue low-side compound gauge and red high-side pressure gauge
Brass manifold body provides corrosion resistance and long-term durability under refrigerant service conditions
Three color-coded hoses (blue, red, and yellow) for easy identification of low-side, high-side, and service/utility connections
Includes quick-connect couplers (blue and red) for fast, secure attachment to A/C service ports
Integrated hanging hook for convenient storage and hands-free use during service
Specifications
Brand: Mastercool
Part Number: 3694
Product Type: A/C System Manifold Gauge Set
Manifold Material: Brass
Gauge Configuration: Dual (Low-Side Compound / High-Side Pressure)
Hose Colors: Blue, Red, Yellow
Coupler Colors: Blue, Red
Includes
1 Brass Manifold Body with Dual Gauges
3 Color-Coded Service Hoses (Blue, Red, Yellow)
2 Quick-Connect Couplers (Blue Low-Side, Red High-Side)
1 Hanging Hook
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.
We want to guarantee your experience with us will be outstanding. Here are just a few of the reasons why mprtools.com is the go-to company to get your tools from:
1-Year Price Match Guarantee
We work very hard to ensure we offer the absolute best prices online. If you find it at a lower price somewhere else within 365 days of purchasing, please message us, and we’ll credit you back the difference right away.
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.
