Roxtec knock-out sleeve
Roxtec solutions · Roxtec
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
Pricing, availability, and lead time are confirmed on quote — send your quantities and application details and a human responds.
Reference documents
These links open current files hosted by Roxtec. Check the source document revision before use.
- R (en) pdf (manufacturer document)
- RS (en) pdf (manufacturer document)
- H3 Ug (en) pdf (manufacturer document)
- R UG (en) pdf (manufacturer document)
- H3 (en) pdf (manufacturer document)
- RS UG (en) pdf (manufacturer document)
- KNOCK-OUT SLEEVE (en) pdf (manufacturer document)
- Data sheet (metric) (manufacturer document)
- Data sheet (imperial) (manufacturer document)
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
Not sure this is the right product? Compare the Roxtec solutions family or describe your application.