The Yellow Jacket 42036 2-Valve Series 41 A2L Manifold is a high-performance HVAC diagnostic manifold engineered for technicians servicing today’s A2L-compatible air conditioning and refrigeration systems. Designed for accuracy, durability, and ease of use, this professional-grade manifold supports R32, R454B, and R410A refrigerants, making it an essential tool for modern HVAC service applications.