MASTERCOOL 89661-AYF Aluminum Manifold Gauge Set

The Mastercool 89661-AYF is a Dual-Refrigerant Manifold Gauge Set designed for servicing both R1234yf and R134a systems. Built around a rugged extruded aluminum block, it features high-visibility 2½” gauges, free-floating piston valves to minimize wear, and both R134a and R1234yf couplers.

Key Features:

• Extruded aluminum manifold block with professional-grade construction
• 2½” silicone-dampened, recalibrateable gauges for accurate readings
• Free-floating piston valves to minimize O-ring wear and increase lifespan
• Large sight glass allows fast visual refrigerant checks
• R1234yf couplers with extended disconnect protection sleeves meet SAE J639 & J2888
• R134a manual couplers meet EPA, UL, and SAE containment standards

Includes:

• (3) 60″ R134a standard hoses
• R134a couplers (82834, 82934)
• R1234yf couplers (83834, 83934)
• 1/2” acme-m x 1/2” acme-f LH thread adapter (83633)
• (2) 12mm-m x 14mm-f R1234yf adapters (83735)