Tuleja wentylacyjna kwadratowa fi 40 Metal Ventilation Sleeve Square 57mm Patina Finish

Product Overview

The Tuleja wentylacyjna kwadratowa fi 40 patyna is a square metal ventilation sleeve designed for installation in interior doors with a thickness of 39 to 43 mm. Used in residential and commercial settings, it facilitates air circulation between rooms while maintaining an unobtrusive appearance. The sleeve's patina finish offers an aesthetic match for classic and vintage interior designs.

What distinguishes this model is its precisely sized 57 mm square profile, allowing for consistent and clean-cut installations in standardized door applications. This feature eliminates the need for adjustment or matching to irregular cut-outs, reducing time and risk during project execution. Recommended for contractors and door manufacturers specifying uniform ventilation solutions in bulk or for retrofitting existing doors.

Key Features

• Square profile 57 mm ? ensures neat, standard-fitting installation in modern interior doors


• Door thickness compatibility ? suitable for doors with 39-43 mm panel thickness


• Metal construction ? provides high durability compared to plastic alternatives


• Patina finish ? visually suited for classic and vintage designs


• For fi 40 mm opening ? matches common ventilation bore sizes in door leaves

Technical Specifications

• Profile Shape: Square


• Side Length: 57 mm


• Opening Size: fi 40 mm


• Compatible Door Thickness: 39-43 mm


• Material: Metal


• Finish: Patina

Applications

Commonly used in residential and commercial interior doors for ventilation, especially in areas requiring passive airflow such as bathrooms, wardrobes, and storage rooms. Suitable for retrofitting in standardized doors and for bulk application by door manufacturers or building contractors.

Packaging & Shipping

Standard export packaging. Unit includes the ventilation sleeve and necessary installation accessories.