Polyacetal flangeless nuts in combination with the inverted ferrule do not require flanging tools. A hand tightening procedure makes leak free seals. The inert ETFE ferrule is the only part, besides the tubing, which is in contact with the fluid, the nut is never in contact with the fluid stream.

• Alternative to PEEK
• Flange-free, compatible with all flat bottom ports
• Six colours are available