# Pneumatic Fittings

> Pneumatic fittings and connectors for filament tubing (PC4, PC6) used on 3D printers and CNC

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/pneumatic-fittings
- Category: 3D and CNC printers > Components and Parts > Pneumatic Fittings
- Prices: RON, VAT included; prices and stock as of 2026-10-22 02:21 (Europe/Bucharest)

## Products (6)

### Connector PC6-01, Yellow, M10, 6mm
- Page: https://sigmanortec.ro/en/connector-pc6-01-yellow-m10-6mm
- Details: https://sigmanortec.ro/en/llms/p/1236.md
- Price: 5.57 RON
- Availability: In stock; 1-2 zile
- Reference: 9226 · EAN: 5941901198241

PC6-01 pneumatic connector, yellow, with M10 thread, for PTFE tubing with 6mm outer diameter. Allows quick and secure connection of tubes in compressed air systems and automation setups, provides good sealing and easy disassembly. Reference 9226.

### Connector PC4-01, Yellow, M10
- Page: https://sigmanortec.ro/en/connector-pc4-01-yellow-m10
- Details: https://sigmanortec.ro/en/llms/p/965.md
- Price: 5.57 RON
- Availability: In stock; 1-2 zile
- Reference: 93-3 · EAN: 5947243154112

Pneumatic connector PC4-01, yellow, with M10 thread, for PTFE tube with 4mm outer diameter. Inner diameter of the connector is 3mm. Used in 3D printers, particularly in the E3D-type print head assembly. The tube locks firmly in place and cannot be pushed or pulled; the M10 thread prevents the tube from passing beyond it.

### Pneumatic connector PC4-M6, CR10
- Page: https://sigmanortec.ro/en/pneumatic-connector-pc4-m6-cr10
- Details: https://sigmanortec.ro/en/llms/p/937.md
- Price: 6.43 RON
- Availability: In stock; 1-2 zile
- Reference: 9126 · EAN: 5948631787790

Quick pneumatic connector PC4-M6 (ref. 9126) for 4 mm outer diameter PTFE tubing, with M6 thread. Made of brass, compatible with Creality Ender extruders and other Bowden systems with M6 thread. Provides firm tube fixation and consistent filament feed, easy to install.

### PC4-01, M10 connector
- Page: https://sigmanortec.ro/en/pc4-01-m10-connector
- Details: https://sigmanortec.ro/en/llms/p/105.md
- Price: 4.36 RON
- Availability: In stock; 1-2 zile
- Reference: 93-4 · EAN: 5944322645288

PC4-01 pneumatic connector with M10 thread, used to guide the 4mm PTFE tube in E3D-type print head assemblies on 3D printers. Push-fit fitting for easy tube insertion, outer thread diameter 9.5mm. Does not allow direct pass-through of the 4mm tube by default, but can be modified using a 4.5mm drill bit.

### PC4 M6 connector, 4mm, Yellow
- Page: https://sigmanortec.ro/en/pc4-m6-connector-4mm-yellow
- Details: https://sigmanortec.ro/en/llms/p/106.md
- Price: 2.59 RON
- Availability: In stock; 1-2 zile
- Reference: 93-1 · EAN: 5949420698150

PC4 pneumatic connector with M6 thread, for PTFE tubing with 4 mm outer diameter, used in the filament feeding system of 3D printers, typically mounted in the extruder pusher. Compact body, thread outer diameter 6 mm, yellow finish for quick identification. Reference 93-1.

### PC4 connector, M6, ID 4mm
- Page: https://sigmanortec.ro/en/pc4-connector-m6-id-4mm
- Details: https://sigmanortec.ro/en/llms/p/107.md
- Price: 2.93 RON
- Availability: In stock; 1-2 zile
- Reference: 93-2 · EAN: 5943778549942

Pneumatic PC4 connector with M6 thread and 4mm internal diameter, for PTFE tube with 4mm outer diameter. Quick push fit connection, firm grip of the tube without play and good sealing for constant feeding. Usually mounted in the filament extruder of 3D printers. Reference 93-2.