Yellow Jacket 42021 Series 41 R-32 R-410A Manifold Set

Product Description

The YELLOW JACKET 42021 is a Series 41 refrigerant manifold gauge set designed for R-32 and R-410A systems. It features 3.125-inch color-coded gauges housed in rugged steel cases with polycarbonate crystals, delivering 1% accuracy (Class 1) for precise readings during charging, recovery, and evacuation procedures. Dual-scale readout displays both bar and psi, as well as Fahrenheit and Celsius, making it versatile for service work across a range of job-site conditions. HVAC technicians rely on this type of manifold for critical charge work where gauge accuracy directly affects system performance and refrigerant compliance.

The 42021 is suited for residential and light commercial HVAC service involving R-32 and R-410A refrigerants. These refrigerants operate at higher pressures than legacy refrigerants, making the Class 1 accuracy rating and durable steel case construction especially relevant for technicians performing precise charge measurements on modern split systems, mini-splits, and heat pumps. The large-diameter gauges improve readability in field conditions, reducing misread errors during charging operations.

Key Features

• 3.125-inch color-coded gauges for improved field readability
• 1% accuracy (Class 1) for critical refrigerant charge applications
• Rugged steel gauge cases with polycarbonate crystals for durability
• Dual-scale display: bar and psi, Fahrenheit and Celsius
• Compatible with R-32 and R-410A refrigerants

Compatibility

Designed for use with R-32 and R-410A refrigerant systems as stated by the manufacturer. Verify port thread compatibility with your service hoses and system service ports before use.

Installation Notes

This manifold set is installed and operated by licensed HVAC technicians in accordance with applicable refrigerant handling regulations, including EPA Section 608 requirements. Always recover refrigerant before opening a system to atmosphere and confirm all connections are properly seated and leak-free before opening manifold valves. Do not use this manifold with refrigerants other than those for which it is rated, as cross-contamination and pressure mismatch can cause equipment damage or personal injury.

Technical Specifications

• Compatible Refrigerants: R-32, R-410A
• Gauge Diameter: 3.125 inches
• Accuracy: 1% (Class 1)
• Pressure Scale: bar and psi
• Temperature Scale: degrees F and degrees C
• Case Material: Steel
• Crystal Material: Polycarbonate

Standard Information

• Brand: YELLOW JACKET
• Manufacturer Part Number: 42021