The term “C & S Connector Duct” may refer to a specific type of ducting system used in HVAC (Heating, Ventilation, and Air Conditioning) or other mechanical systems. However, there are multiple interpretations based on the context, as it could relate to:

Connector Ducts: These are often used in ventilation systems to connect different sections of ductwork, ensuring proper airflow throughout a building.

C & S: This could potentially stand for “Commercial and Service” or refer to specific manufacturers or brands known for ductwork systems, though this would require more context to clarify.

Design Specifications: A design or manufacturing standard might encompass various sizes, materials, and configurations suited to different applications.