Roxtec
Roxtec knock-out sleeve
The Roxtec knock-out sleeve (KOS) keeps your building dry during and after construction, and provides spare capacity for future needs. The sleeve is easily fixed and cast into structures of varying thickness and ensures a tight seal until its plate is knocked out for cable and pipe routing. The sleeves have an integrated feature which allows them to be connected into space efficient clusters. Once cables or pipes are routed, they are to be sealed with Roxtec UG™ underground solutions in the corresponding size.
- Light-weight
- Area efficient
- Quick and easy to install
Reference documents
These links open manufacturer-hosted reference files. Check each source document revision before use.
Product sources
- Source checked 2026-08-08: official Roxtec product page.
About Roxtec solutions
Roxtec solutions group complete cable and pipe transit arrangements by application. Send the penetration details or a known part number so the requested scope can be reviewed.
Typical applications:
- Cable and pipe penetrations
- New construction
- Retrofit and upgrade work
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