Bambu Lab H2 PTFE Tube Coupler

GW-T-H2 PTFE Tube Coupler
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  • Official replacement coupler for H2-series 3D printers
  • Secures PTFE tube between filament path and hotend
  • Provides stable filament feed and prevents tube slippage
  • Includes BT3-5 mounting screw for firm installation
  • Compact & lightweight (approx. 60 × 60 × 30 mm / 0.03 kg)
  • Durable construction – plastic body with metal hardware
  • Ensures smooth extrusion and consistent print quality
  • Easy to replace – compatible with H2, H2D, and H2D Laser

R175 incl. VAT
R153 excl. VAT

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The H2 PTFE Tube Coupler is an official spare part designed for the H2-series of 3D printers from Bambu Lab. It functions to securely connect the internal PTFE feed-tube (between the buffer / filament spool side) and the tool-head / hotend assembly. 

Key Features

  • Secure PTFE tube connection: The coupler helps lock in the PTFE tube so that filament feed is stable and consistent, reducing risk of dislodgement or misalignment. 
  • Compatibility with H2 Series printers: Works with the H2 series (including H2D / H2D Laser) of Bambu Lab printers. 
  • Includes mounting screw: The product packaging includes the coupler plus a BT3-5 screw to secure it in place.
  • Compact and lightweight: Packaging size specified as approximately 60 × 60 × 30 mm, with a package weight around 0.03 kg.
  • Available in color variants: Officially listed in Black or White.
  • Materials: Constructed from a combination of plastic and metal components (likely metal insert or screw + plastic body).

What’s In The Box

  • 1 × H2 PTFE Tube Coupler
  • 1 × BT3-5 mounting screw

Installation & Usage Notes

  • This coupler is installed at the back of the printer to secure the PTFE tube feed. 
  • For proper installation: The coupler must be aligned correctly and the PTFE tube inserted fully until locked. After tightening the screw, gently tug the tube to confirm it is anchored. (General practice of PTFE couplers.)
  • It’s recommended to consult the Bambu Lab Wiki for step-by-step instructions to replace this component to ensure correct fit and avoid filament feed issues.

Specifications

  • Compatible with: H2 series printers (H2, H2D, H2D Laser)
  • Materials: Plastic body, metal screw / hardware 
  • Package Size: ~ 60 × 60 × 30 mm 
  • Package Weight: ~ 0.03 kg 

Benefits

  • Ensures smooth filament feeding: A secure coupler reduces the chance of the PTFE tube shifting during printing, which can lead to feed irregularities or clogs.
  • Spare part readiness: For regular use of the H2 series printers, having this part on hand means you can quickly replace a worn or damaged coupler without long downtime.
  • OEM quality: As an official Bambu Lab component, it’s designed to match the printer’s tolerances and mounting points, reducing compatibility risk compared to third-party substitutes.

Please Note

  • Ensure correct compatibility: Though listed for H2 series, always check your exact model number (H2 vs H2D vs H2D Laser) to ensure fit.
  • Proper tube insertion: Even with a good coupler, mis-insertion of the PTFE tube or insufficient tightening of the screw can cause filament slip or feed issues. After installation, test a filament change or short print to verify.
  • Wear over time: PTFE tube couplers can wear with repeated insertions/extractions of filament or vibration—periodic inspection is advised if you print heavily.
Bambu
GW-T-H2 PTFE Tube Coupler

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