6" x 6" x 4" Smoke Pipe Duct Wye

The Lukjan Series 421 Duct Wye is a 45-degree airflow fitting designed to connect a water heater vent to a main vent run with secure, efficient airflow.

This wye features dual 6 inch main openings with a 4 inch branch, providing a smooth transition for proper draft and venting performance. Built from galvanized steel, it ensures durability and long service life in residential and light commercial systems.

• Model: Series 421, engineered as a duct wye airflow fitting.
• Dimensions: 6 x 6 inch main run with 4 inch branch at 45 degrees.
• Application: Designed for water heater vent connections and other HVAC venting needs.
• Material: Galvanized sheet steel with corrosion-resistant metallic finish.

Technical Data & Performance

• Product Type: Duct Wye – 45° Airflow Fitting.
• Construction: Precision-formed galvanized steel with smooth interior to reduce resistance.
• Performance: Ensures proper draft, reduces leakage, and supports efficient venting.
• Compatibility: Suitable for residential and light commercial venting systems.
• Compliance: Manufactured to industry HVAC and venting standards, compatible with Type-B venting when installed per code.