Mellow 2-Pack 3D Printer PTFE Tube Adapter | 1.75mm & 3mm

Mellow 2-Pack 3D Printer Remote Feed Tube Connector – PTFE Tube Adapter

Upgrade your 3D printer's filament feed system with the Mellow 2-Pack Remote Feed Tube Interface Connectors. These all-metal pneumatic fittings replace flimsy plastic push-fit connectors, delivering a rock-solid, leak-free connection between your PTFE (Teflon) tube and the extruder or hot-end inlet. Compatible with both 1.75mm and 3mm filament setups, these connectors are an essential upgrade for any FDM printer running a Bowden or remote-feed configuration.

Made in Mainland China.

Why Upgrade to All-Metal Tube Connectors?

• Full-Metal Construction: Eliminates failures caused by weak plastic pneumatic plugs — the all-metal body withstands repeated heat cycles and mechanical stress without cracking or slipping.
• Secure Grip: Collet-style locking mechanism grips the PTFE tube firmly, preventing filament jams caused by tube pull-out during retraction.
• Universal Compatibility: 1/8 taper pipe thread connection fits a wide range of 3D printer hotends, extruder bodies, and Bowden setups.
• Two Tube Size Options: Choose the specification that matches your setup — Spec ①: 4mm OD × 2mm ID feeding tube insert, or Spec ②: 6mm OD × 4mm ID feeding tube insert.
• Pack of 2: Keep a spare on hand or outfit two printers at once.

Specifications

Compatible Use Cases

• Bowden extruder systems (e.g. Creality Ender, CR-10, Prusa variants)
• Direct-drive remote feed setups
• Hotend PTFE tube inlet ports
• Any printer using 1/8 NPT or taper pipe fittings

Related Products You May Like

• 5-Pair Nitrile Work Gloves – Anti-Slip Full Finger Safety – handy when handling hot-end components
• 10-Pack 65mm Oscillating Multi-Tool Saw Blades | Carbon Steel – workshop essentials
• Ball End Hex Screwdriver Bit – Magnetic Reduced Shank Steel – perfect for printer assembly

Learn more: OSHA on personal protective equipment

Frequently Asked Questions

Q: Are these PTFE tube adapters compatible with my Creality Ender 3 or similar Bowden printer?

A: Yes! The Mellow remote feed tube connectors use a standard 1/8 taper pipe thread connection, which is compatible with most popular FDM printers that use Bowden setups, including Creality Ender series, CR-10, and many others. Just confirm your hotend's inlet thread size before ordering.

Q: What is the difference between Specification ① and Specification ②?

A: Specification ① is designed for a 4mm OD × 2mm ID PTFE feeding tube (commonly used with 1.75mm filament), while Specification ② fits a 6mm OD × 4mm ID feeding tube (typically used with 3mm filament systems). Select the spec that matches your current PTFE tube outer diameter.

Q: Why should I replace my plastic pneumatic push-fit connectors with these metal ones?

A: Plastic pneumatic connectors can crack, loosen, or fail over time due to heat and repeated retraction forces, leading to filament jams and failed prints. The all-metal Mellow connectors provide a more durable, stable grip that maintains a secure seal between the PTFE tube and the extruder — helping you achieve more consistent, reliable print results.

Q: Do these require any tools to install?

A: Yes, basic assembly is required. You'll need a small wrench to thread the connector into the 1/8 taper pipe port on your printer's hotend or extruder body. Once installed, the PTFE tube inserts and locks into the collet without additional tools.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.