Yellow Jacket 42035 Series 41 2‑Valve Manifold Gauge — 3‑1/8" Faces, A2L‑Ready, 1% Accuracy

The Yellow Jacket 42035 Series 41 2-valve manifold is an A2L-ready HVAC service gauge set with large color-coded 3-1/8" gauges, 1% accuracy, and a forged brass body for durable, high-flow performance.

Engineered for modern low-GWP refrigerants, the Yellow Jacket 42035 2-valve manifold supports R32, R454B and R410A service tasks without hoses included. It combines oversized, easy-to-read gauges housed in steel cases with precision internals and robust materials to deliver repeatable pressure readings and long service life when diagnosing, charging, or recovering refrigerant in commercial and residential systems.

How precise are the gauges for critical charging and leak checks?

The Series 41 gauges provide 1% accuracy to give technicians a reliable reference during sensitive charging and diagnostics. The larger 3-1/8" faces and color-coded scales speed visual interpretation, reducing the chance of misreading under field conditions.

• 1% accuracy rating for consistent pressure measurements
• 3-1/8" gauge faces with clear, color-coded scales
• Steel cases and polycarbonate crystals protect dials in harsh environments

What features improve durability and service life on the job?

Durability comes from a forged brass manifold body that resists wear and corrosion while full internal porting maximizes flow capacity. Internally, sliding double O-ring pistons and long-life nylon seats lower friction and reduce replacement frequency.

• Forged brass construction for mechanical strength
• Full porting to maintain high flow and minimize restrictions
• Sliding double O-ring pistons and nylon seats to cut wear

Which refrigerants and applications is this manifold compatible with?

This 2-valve set is built to be A2L-compatible and covers common low-GWP and conventional refrigerants such as R32, R454B, and R410A. It fits routine HVAC service tasks including system evacuation, pressure checks, and charging when paired with appropriate hoses and accessories.

• Designed for R32, R454B, and R410A refrigerants
• A2L-compatible construction for use with mildly flammable refrigerants
• Does not include hoses — pairs with standard service hoses and fittings

How does the design improve usability during field work?

Large, color-coded gauges with tough polycarbonate crystals and steel cases make readings fast and protected against impact. The two-valve layout simplifies isolation and control, while the full-port passages keep service operations efficient.

• Two-valve configuration for straightforward isolation and control
• Polycarbonate gauge windows for scratch and impact resistance
• Color-coded scales accelerate troubleshooting and charging steps

Who is this for: The Yellow Jacket 42035 is aimed at HVAC technicians and service professionals who work with A2L or low-GWP refrigerants and need a rugged, accurate handheld manifold for diagnostics and charging. It’s a practical choice when precise readouts, durable materials, and high-flow capability are priorities; note that hoses are sold separately so you can choose compatible lengths and fittings for your workflow.