Identify a neck by its size
Enter the neck height and thread diameter measured on your bottle. The tool shows the standard and matching preforms.
You need a caliper or a ruler with millimetres. Measure a finished bottle or a preform from your line.
ResultPCO 1881
How to measure correctly
- Put the caliper on the neck topOne jaw on the top edge of the neck, the other on the top face of the support ring.
- Measure diameter across the threadThe outer size across the thread crests: about 28 mm for PCO 1881 and PCO 1810.
- Check the capThe cap from your line must be the same standard: PCO 1881 and PCO 1810 are not interchangeable.
Cannot measure it?
Photograph the neck next to a ruler and send it to us. We will identify the standard from the photo.
