The Gas LPG Propane Furnace Manifold Line Low Pressure Manometer Gauge by VIOT is a comprehensive HVAC tool package that includes a manometer for gas line pressure, gauge, adapter, hose, and storage case. This set is designed to measure up to 35 inches of water column (WC) of appliance gas line pressure, making it essential for various industrial and commercial applications. The custom bundle ensures all the necessary components are included for accurate and efficient testing and measurement of gas line pressure in HVAC systems.