Product Description
Mastercool 66661-AYF Dual Brass Manifold Gauge Set – the professional's choice for diagnosing and servicing both R134a and R1234yf A/C systems in modern hybrids, EVs, and gas vehicles. This heavy-duty forged brass manifold features large 2-1/2" (6.35 cm) silicone-dampened gauges for smooth, accurate readings with minimal needle flutter – recalibratable for long-term precision. Extra access port for vacuum lines ensures efficient evacuation and charging every time.
Key Features:
- Dual refrigerant compatibility – R134a (economy couplers) + R1234yf (SAE J639/J2888 quick couplers)
- Silicone-dampened, recalibratable 2-1/2" gauges – PSI/°F scales for easy diagnostics
- Forged brass body – durable, leak-proof construction for daily shop use
- Extra vacuum port – simplifies system evacuation and testing
- Includes adapters: 1/2" ACME M x 1/2" ACME F LH thread + (2) 12 mm M x 14 mm F R1234yf
Package Includes:
- Brass 2-valve manifold with gauges
- Set of 3 – 60" (152 cm) R134a standard hoses
- R1234yf high/low quick couplers
- R134a high/low economy couplers
- 1/2" ACME adapter + (2) 12 mm/14 mm R1234yf adapters
