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The SOUTHWARK METAL 100_7IN is a hot dip galvanized steel oval sheet metal pipe designed for low-pressure air distribution in forced-air HVAC duct systems. Measuring 7 inches in diameter and 100 inches in length, this oval pipe provides a lower-profile duct solution compared to round pipe, making it well suited for tight ceiling, floor joist, and wall cavity installations. The hot dip galvanized steel construction resists corrosion and meets the demands of long-term residential and light commercial duct applications. HVAC sheet metal installers and duct fabricators are the primary trades who work with this product.
This oval pipe is used in supply and return air duct systems where vertical clearance is limited and a round pipe would not fit within the available framing space. Typical installations include residential new construction and retrofit projects where ductwork must run through floor joists or stud bays. It is fabricated to meet ACCA and SMACNA standards, confirming dimensional and performance compliance for professionally designed duct systems.
Designed as an OEM-style replacement or new-installation component for residential and light commercial forced-air duct systems requiring 7-inch oval sheet metal pipe conforming to ACCA and SMACNA standards.
Installation should be performed by a licensed HVAC technician or qualified sheet metal installer in accordance with SMACNA duct construction standards and local mechanical codes. Shut down and lock out the air handling system before connecting or modifying any duct section. Secure all joints with approved sheet metal screws and seal with mastic or UL 181-listed tape per applicable code requirements. Avoid overtightening fasteners that may deform the oval profile and restrict airflow.
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