PVC blind cable tie manufactured by Cepex (UP. 37. FLG).
Blind flanges have no diameter in the middle, and are mainly used to close ends of piping systems (end of line), allowing easy access to the line once it has been sealed.
Available in sizes from D20 to D225 mm.
To this day, Cepex PVC fittings are still the only ones on the market with the AENOR quality mark.