Cowl

A cowl is a short fitting used to join two pieces of pipe, providing a secure connection and often serving as a transitional piece between different pipe sizes or materials. In plumbing, cowls are used to link vent pipes, ensuring that gases and vapors are safely directed out of the building. They are also found in drainage and HVAC systems, where they help connect ductwork or exhaust pipes. Cowls are typically made from materials like PVC, metal, or rubber, chosen based on the application and compatibility with the pipes being joined. The cowl’s design allows for easy installation and removal, facilitating maintenance or modifications to the plumbing system. Proper sealing of the cowl connection is essential to prevent leaks and ensure efficient system