Yellow Jacket 42001 Series 41 2-Valve Manifold For R-22 R-404A R-410A (Manifold Only No Hoses) PSI R22/R404A/R410A Color-coded scales Sliding double “O” ring pistons reduce wear Long life nylon seats Forged brass body for durability Full porting maximizes capacity and flow Some models include color-coded 60 PLUS II™ hoses with standard 1/4 flare fittings Hose assemblies UL recognized for 4000 psi (275 bar) burst and 800 psi (55 bar) working pressure. File# SA9737 Made in the USA For the A/C and Refrigeration Service Technician Features: Large 3-1/8” gauges feature steel cases with polycarbonate crystal Larger dials are bold and easy to read. Color-coded scales. 1% accuracy (Class 1) full scale gauges are easy to read. More accuracy for critical charge systems. Proven sliding double “O” ring pistons reduce wear. Long life nylon seats. Forged brass body for durability. Full porting maximizes capacity and flow. Full-size metal valve handles for easy operation.