020-051

This premium pressure switch hose is an essential replacement part for HVAC systems and gas furnaces. It serves as the critical vacuum link between the air pressure switch and the inducer fan or collector box, allowing the system to verify proper airflow before ignition. Measuring 5 inches in length with a .188-inch internal diameter, this flexible tubing is engineered to withstand the heat and environmental demands of a furnace cabinet. If your heating system is failing to ignite or displaying pressure switch error codes, a cracked, brittle, or clogged air proving hose may be the cause. Replacing this tube ensures accurate pressure readings and safe appliance operation.
Type: HVAC Air Pressure Switch Tubing
Size: Small
Dimensions: 5 inches × 0.188 inch ID
Application: Used in gas furnaces and air handlers to connect the air proving switch to the draft inducer or burner assembly.
Specifications: Flexible, heat-resistant construction; .188-inch internal diameter for airtight connections.