PATIKIL 7" to 4" Duct Reducer, 2 Pcs

Updated September 8, 2026

Condition: NEW- Brand: PATIKIL Model: 1 ASIN: B0DG2BYGZW Color: Silver Tone Size: 7 Inch to 4 Inch Material: Galvanized Steel; Size: 180mm Male to 100mm Male Round Duct Reducer Adapter (7.09 Inch to 3.94 Inch); Length: 150mm/ 5.91 Inch; Thickness: 0.6mm/ 0.02 Inch; Package List: 2 Pcs x Galvanized Steel Round Duct Reducer The air duct reducer or increaser is used for connecting solid or flexible ducts in ventilation systems, creating a stable connection between air ducts while maintaining airflow efficiency. Widely used in HVAC, ventilation, heating and cooling, fresh air supply systems, bathroom or kitchen exhaust, grow tents, dryer vent adaptation, cooker hoods, air-cooled hoods, embedded fans, roller dryers, dust collection systems, etc. Advantage: One-piece design, made of good galvanized steel material, the round duct reducer is sturdy, does not easily rust, and highly fits other ventilation systems products. Raised edges on both openings provide a better grip for connecting pipes, and this duct reducer has a crimped design on the small end of the duct to fit inside the next section of ducting easily, making them firmly connect and work stably. Instruction: Simply insert the straight or flexible pipe, secure it with the steel clamp or tape. NOTE: Please check the outer diameter of the pipes before purchasing.

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