Mini Split System Low Side Charging Manifold, Pressure Gauge, Hose Set. Charging hose, gauge and Low Side manifold kit for Mini Split System Installations. Simple low side charging manifold contains R410a rated low side pressure gauge. 2' Long, BLUE hose with 5/16" SAE connector for most newer Mini Split System service ports. 2' Long, YELLOW hose with 1/4" SAE connector for vacuum pump and refrigerant tank ports. Please note: This item is specifically made for new Mini Split Systems and already has the 5/16" connector for their new 5/16" service ports.