PC4-M6 Fittings: thread M6, inner diameter(Blue End)4mm, suitable for the tube whose outer diameter is 4mm.
PC4-M10 Fittings: thread M10, inner diameter (Black End) 4mm, suitable for the tube whose outer diameter is 4mm.
Material:PC4-M6 fittings are made of copper and plastic. Seal ring for Extruder help to prevent leakage. Heavy duty and durable;PC4-M10 fittings are made of stainless steel and plastic. High hardness and Anti-corrosion.
Easy to install:connecting by the outer thread of the quick fitting.
Compatibility: compatible with 1.75mm PLA ABS 3D printer.