KOS 4" L=8"
Art. No. 214813
- External dimensions WxHxD (mm)
- 202 x 202 x 203
- Weight (kg)
- 0.95
Roxtec round frames/seals
Roxtec Knock-out sleeve (inch version)
Roxtec round frames/seals · Roxtec
The Roxtec knock-out sleeve with a back side connection to sch40/80 conduits and a front side matched to a range of Roxtec inch based seals. It ensures tightness prior to cable routing and provides spare capacity for future expansion thanks to the knock-out plate feature.
- Connected conduit is sealed by the knock-out plate.
- Rounded front edge for easy cable pulling.
- To be used together with suitable Roxtec seals.
Pricing, availability, and lead time are confirmed on quote — send your quantities and application details and a human responds.
Article numbers and specifications
Select the closest article number, then include the opening, cable or pipe sizes, quantity, and required date in the request.
KOS 5" L=8"
Art. No. 214814
- External dimensions WxHxD (mm)
- 228 x 228 x 203
- Weight (kg)
- 1.2
KOS 6" L=8"
Art. No. 214815
- External dimensions WxHxD (mm)
- 254 x 254 x 203
- Weight (kg)
- 1.45
KOS 8" L=8"
Art. No. 214816
- External dimensions WxHxD (mm)
- 302 x 302 x 203
- Weight (kg)
- 1.9
Reference documents
These links open current files hosted by Roxtec. Check the source document revision before use.
- KNOCK-OUT SLEEVE (en) pdf (manufacturer document)
- S1534137 KOS - KNOCK OUT SLEEVE INSTALLATION ALTERNATIVES PDF (installation instruction)
- S1580682 KNOCK-OUT SLEEVE INCH VERSION ASSEMBLY PDF (manufacturer document)
Source checked 2026-08-08: official Roxtec product page.
About Roxtec round frames/seals
Roxtec round frames and seals cover round cable and pipe entry arrangements. Selection depends on the opening, cable or pipe dimensions, attachment method, and project requirements.
Typical applications:
- Round openings
- Sleeves and core-drilled holes
- Cable and pipe entries
Not sure this is the right product? Compare the Roxtec round frames/seals family or describe your application.