ECAS04 Bowden Pneumatic Quick Connector for 4mm PTFE Tube

The ECAS04 Bowden Pneumatic Quick Connector is a premium-grade, compact collet designed for 3D printer extruders and hotends. Engineered to solve the common issue of PTFE tube slippage, this connector provides a secure, high-precision grip on standard 4mm Outer Diameter (OD) Bowden tubes. By eliminating play and backlash during rapid retraction cycles, it ensures highly consistent filament extrusion and significantly improves overall 3D print quality.

Unlike bulky threaded fittings, the ECAS04 features an embedded design that presses directly into pre-machined extruder bodies or hotend heatsinks. This makes it a popular choice for modern high-speed 3D printers, including Voron builds, Creality series, and custom DIY extruder setups. Its robust internal locking teeth and easy-to-use blue release collar make tube insertion and removal effortless, providing a reliable seal for both 1.75mm and 3.0mm remote feed setups.

Features:

• High-Precision Grip: Internal metal locking teeth firmly secure 4mm OD PTFE tubing to prevent slippage during high-speed retractions.
• Space-Saving Embedded Design: Fits directly into 8mm mounting holes, offering a sleek, low-profile alternative to threaded PC4-M6/M10 couplers.
• Quick-Release Mechanism: Ergonomic blue collar allows for instant, tool-free insertion and removal of the Bowden tube.
• Durable Construction: Manufactured with high-quality wear-resistant plastic and metal components for long-lasting performance.
• Optimized for 1.75mm Filament: Perfect for standard Bowden setups utilizing 4mm OD / 2mm ID PTFE tubing.

Package Includes:

1 x ECAS04 Bowden Pneumatic Quick Connector