Delta Packaging Copilot
Neck & Closure Compatibility Matcher
Pick a PET preform neck finish — get the exact compatible Delta PE closure(s), material and specs, then send an RFQ for the pair. Built from Delta El Nile's catalog compatibility rules.
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Compatibility reflects Delta El Nile's catalogue; our engineering team confirms thread/seal fit and torque on every RFQ. PCO 1810 and 42/36 are preform necks with no standard Delta catalogue closure (see guidance).
How PET neck & closure compatibility works
A closure must match the preform's neck finish exactly — thread pitch, diameter and sealing surface are engineered as a pair. Delta El Nile moulds both the preform and its matching PE closure in-house, so every pairing below is a validated Delta catalogue combination. Thread and seal fit, torque and application angle are confirmed for your capping line on every RFQ.
Neck finish → matching Delta closure
- PCO 1881 — CSD → PCO 1881 closure
- 29/25 — still water → 29/25 water closure
- 32/15 — juice & dairy → 32/15 closure
- 38 mm — juice & dairy → 38 mm closure · 37 mm press-on
- 29/21 — edible oil → 1-piece & 2-piece oil closures
- 48 mm — water → 48 mm closure · 48 mm handle
- 55 mm — water / 5-gallon → 55 mm closure, lid & foam-liner