Yellow Jacket's 46010 BRUTE II Test and Charging 4 Valve Manifold Provides the Flow that's Proven Faster than any Conventional Manifold. The Aluminum Alloy Body is Forged for Strength and Reliability with 3/8" Bores through the Body to Speed the Job. Additional Features Include 3-1/2" Red and Blue Liquid Filled Gauges, Contoured Easy Grip Handles for Positive Control and a Double O-Ring Piston for Reliability and Long Service Life. This Manifold Measures PSI and Fahrenheit and is for use with R22, R404A and R410A Refrigerants