PC4-01 M10 Pneumatic Quick Connector Fitting (For 1.75mm PTFE Tube)

Product Description

The PC4-01 M10 Pneumatic Quick Connector Fitting is an essential replacement component for any 3D printer running a Bowden extrusion system. Designed to securely lock onto standard 4mm outer diameter (OD) PTFE tubing—such as Capricorn or standard white Teflon—this fitting ensures your filament path remains absolutely rigid.

A worn-out pneumatic fitting is one of the leading causes of print quality issues. If the internal metal teeth fail, the PTFE tube will slide back and forth during retractions, leading to severe stringing, inconsistent extrusion, and hotend clogs. This high-quality replacement features sharp, durable stainless steel gripping teeth and a smooth quick-release push ring to hold the tube tightly without crushing it.

Featuring standard PC4-01 (M10 / 1/8″ BSPT) threading, this larger fitting is most commonly used on the extruder side of the filament path (fitting perfectly into dual-drive BMG clones, Titan extruders, and standard CR-10 style aluminum extruders), as well as on specific V6 hotend heatsinks designed for 1.75mm filament.

Key Features

• Secure Tube Lock: Internal stainless steel teeth bite firmly into the PTFE tube, preventing retraction slip and reducing stringing.

• Standard Compatibility: Designed for 4mm OD tubing, which is the standard for 1.75mm 3D printing filament setups.

• M10 Threading: Features the standard PC4-01 (M10/1/8″) thread commonly found on extruders and some J-Head V6 hotends.

• Quick Release: The top collar ring allows for easy, tool-free removal of the PTFE tube when maintenance is required.

• Durable Construction: Made from anti-corrosion brass and heavy-duty plastic for a long-lasting lifespan in high-retraction setups.

Applications

• Replacing worn-out or slipping extruder fittings on Bowden 3D printers

• Upgrading standard Creality, custom Voron, or DIY CNC filament feeding systems

• Building custom filament dry-box pass-throughs for smooth material feeding

• Connecting standard 4mm pneumatic air lines in workshop automation projects