Lukjan dx331026 Starting Collar 26x10 Duct Fitting

Product Description

The LUKJAN dx331026 is a 26 x 10 inch starting collar used in sheet metal ductwork systems to create a branch takeoff from a main trunk duct. Starting collars provide a secure, low-leak connection point where round or rectangular branch runs originate, maintaining airflow integrity throughout the distribution system. This collar is sized at 26 x 10 inches and is a standard component installed by HVAC technicians during new construction and retrofit duct fabrication. It fits into the broader category of duct fittings used across residential and light commercial forced-air systems.

The dx331026 starting collar is suited for trunk-and-branch duct layouts common in residential and light commercial HVAC installations. It is typically installed where a branch duct connects to a larger rectangular trunk, enabling a clean, rigid transition point. HVAC sheet metal workers and duct installers use starting collars at supply plenum outlets and main duct spans to route conditioned air to individual zones or rooms.

Key Features

• 26 x 10 inch opening size provides a direct fit for standard trunk duct takeoff applications
• Designed for use in ducted forced-air HVAC distribution systems
• Part of the duct fittings product category for sheet metal ductwork assembly
• Standard collar form factor compatible with typical field fabrication and installation practices

Compatibility

Designed as an OEM-style duct fitting for use in standard rectangular trunk duct systems requiring a 26 x 10 inch starting collar connection point.

Installation Notes

Starting collars are installed by licensed HVAC technicians or qualified sheet metal workers. Power down the air handling unit before cutting into an existing duct. Secure the collar to the trunk duct using sheet metal screws and seal all joints with UL-listed foil tape or duct mastic in accordance with local mechanical codes. Do not leave connections unsealed, as air leakage at takeoff points reduces system efficiency and static pressure performance.

Technical Specifications

• Size: 26 x 10 inches
• Product Type: Starting Collar
• Section: Duct/Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: dx331026