![Amazon.com: SIQUK 2 Pcs PTFE Teflon Tube (2M) 4 Pcs PC4-M6 Quick Fitting 4 Pcs PC4-M10 Straight Pneumatic Fitting Push to Connect for 3D Printer 1.75mm Filament : Industrial & Scientific Amazon.com: SIQUK 2 Pcs PTFE Teflon Tube (2M) 4 Pcs PC4-M6 Quick Fitting 4 Pcs PC4-M10 Straight Pneumatic Fitting Push to Connect for 3D Printer 1.75mm Filament : Industrial & Scientific](https://m.media-amazon.com/images/I/51PmJfBxc4L.jpg)
Amazon.com: SIQUK 2 Pcs PTFE Teflon Tube (2M) 4 Pcs PC4-M6 Quick Fitting 4 Pcs PC4-M10 Straight Pneumatic Fitting Push to Connect for 3D Printer 1.75mm Filament : Industrial & Scientific
![Amazon.com: LUTER 3 Pieces Teflon Tube PTFE White Tubing (1m) + 3 Pieces Quick Fitting for PC4-M6 + 3 Pieces Straight Pneumatic Fitting Push for PC4-M10 to Connect for 3D Printer 1.75mm Amazon.com: LUTER 3 Pieces Teflon Tube PTFE White Tubing (1m) + 3 Pieces Quick Fitting for PC4-M6 + 3 Pieces Straight Pneumatic Fitting Push for PC4-M10 to Connect for 3D Printer 1.75mm](https://m.media-amazon.com/images/I/61O+TwSm7zL.jpg)
Amazon.com: LUTER 3 Pieces Teflon Tube PTFE White Tubing (1m) + 3 Pieces Quick Fitting for PC4-M6 + 3 Pieces Straight Pneumatic Fitting Push for PC4-M10 to Connect for 3D Printer 1.75mm
![Amazon.com: High Temperature Resistant Premium Bowden Tubing 6M TPFE Teflon Tube for 1.75mm Filament with Upgraded PC4-M6 and PC4-M10 Pneumatic Fittings ,Teflon Cutter,Collet Clips and Spanner for Ender 3/3 Pro : Industrial & Amazon.com: High Temperature Resistant Premium Bowden Tubing 6M TPFE Teflon Tube for 1.75mm Filament with Upgraded PC4-M6 and PC4-M10 Pneumatic Fittings ,Teflon Cutter,Collet Clips and Spanner for Ender 3/3 Pro : Industrial &](https://m.media-amazon.com/images/I/81YIy2KsiVL.jpg)