Yellow Jacket® BRUTE II 4-valve test and charging manifolds feature a forged aluminum body with full 3/8 bore for fast vacuum and charging. Provides faster flow compared to conventional manifolds. Compact, lightweight aluminum alloy is forged for strength and reliability with 3/8" bores through the body. 4 hose connections enable connection to hi/lo sides, refrigerant tank and recovery unit or vacuum pump for operation without switching hoses. Allows front access for easy recalibration. Proven double O-ring piston offers long, reliable service. Exclusive 100-mesh in-line filter located on all flare fittings helps keep out particulate materials. Contoured easy-grip handles offer positive control and are color-coded for easy identification. Sight glass allows clear viewing of refrigerant movement and conditions during operation.