Airtight plugs for conduits for interior and exterior use



  • Ensures cables in empty ducts are sealed
  • Construction in adherence with standards: for airtight bonding in accordance with DIN 4108-7, SIA 180 and RT 2012
  • Simply insertion: press-out membrane creates a reliable seal with cable
  • Easy to work with: holes can be pre-formed with a nail or nozzle tip
  • Also suitable for several cables
  • Reliable air sealing to profiled pipes thanks to multiple lip sealing
  • Can be easily removed if a new cable is to be installed
  • Excellent values in the hazardous substance test, has been tested according to the ISO 16000 evaluation scheme

Areas of Application

For the quick and lasting, secure airtight installation of cables in conduits. Conduit grommets (e.g. ROFLEX 20 or ROFLEX 20 multi) are available for the airtight connection of conduits to the vapour retarder and airtightness membrane.

Technical specs

Material Thermoplastic elastomer (TPE)
Attribute Value Norm
Colour blue
Conduit outer diameter 25 mm ; 0.98"
Conduit inner diameter 19.5 mm ; 0.77"
Application temperature > -10 °C ; 14 °F
Temperature resistance permanent -50 °C to 90 °C ; -58 °F to 194 °F
Storage cool and dry