PC4-M6 Pneumatic Connector with Nut for 3D Printer Parts Filament Dryer Box 4x2.5mm Tube DIY Dry Bo new and high quality. Convenient to DIY dry box. Quick plug with nut, easy to lock! One end of the quick plug is straight-through can be connected to the DIY box, the other end of the non-straight-through, to prevent the tube in the quick plug sliding, you can also remove the quick plug, the tube directly to the machine! Color: As Shown Material: Brass + Plastic Package Contents: 4 x Pneumatic Fittings Connector 4 x Nut 4 x Sealing cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.