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The AIR FLOW PRODUCTS PI125SL is a snap-lock galvanized steel pipe section designed for low-pressure air distribution in residential and light commercial HVAC ductwork systems. Constructed from 30-gauge galvanized steel, this pipe measures 12 inches in diameter and 5 feet in length, making it a standard-format round duct section for trunk-line and branch-run applications. The snap-lock seam allows for fast, tool-minimal assembly on the job site, reducing installation time compared to spiral or mechanically crimped pipe. HVAC sheet metal installers and duct fabricators are the primary users of this product.
This pipe section is used in forced-air heating and cooling systems where round galvanized ductwork is specified. It is well suited for new construction and retrofit applications in residential homes, light commercial spaces, and multi-family units. The 12-inch diameter accommodates higher-volume air distribution runs off a main trunk. Typical installations connect this section using drive-and-cleated fittings, slip couplings, or sheet metal screws with mastic or foil tape sealing at each joint.
Designed as a standard OEM-style round galvanized duct section compatible with 12-inch diameter snap-lock and slip-fit duct fittings, elbows, tees, and transitions used in residential and light commercial forced-air HVAC systems.
Installation of round galvanized ductwork should be performed by a licensed HVAC technician or qualified sheet metal installer in accordance with local mechanical codes and SMACNA ductwork standards. Always de-energize the air handling unit and shut off the furnace or air handler before working on connected duct sections. Seal all joints with UL 181-listed mastic compound or foil tape to meet energy code requirements. Wear appropriate cut-resistant gloves when handling raw sheet metal edges.
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