2-Valve Mechanical Manifold Gauge Set
The Yellow Jacket 42021 is a Series 41 manifold with larger, easier to read 3-1/8″ color-coded gauges in rugged steel cases with polycarbonate crystals. These gauges feature 1% accuracy (Class 1) for an exact reading in critical charge systems.
The refrigerant scales and pressure arcs are color-coded for convienance and the numbers are large for high visibility. These gauges feature 1% accuracy over the full pressure range. 1% accuracy is important for critical charge systems where an exact reading is critical. This manifold is designed for air conditioning and refrigeration service technicians.
Sliding double “O” ring pistons reduce wear
Long life nylon seats
Forged brass body for durability
Full porting maximizes capacity and flow
Hose assemblies UL recognized for 4000 psi (275 bar) burst and 800 psi (55 bar) working pressure. File# SA9737
Made in the USA