The Festo connector QSL-B-4-20 is an essential pneumatic fitting. It enables a quick and secure connection of pneumatic lines to devices or distributors. The QSL series is characterized by its ease of use and high reliability, making it ideal for use in automated systems. The push-in connector element is designed for an outer diameter of 4 mm and features a G1/8 internal thread. The robust construction ensures durability even under demanding operating conditions. Installation is tool-free by simply inserting the line. The QSL-B-4-20 is used in general automation technology, mechanical engineering, and pneumatic circuits where precise and rapid connections are required. Ideal as a spare part or for expanding existing systems. Order now to secure your production processes.