Airtight plugs for conduits



  • Quick and easy airtight sealing in accordance with DIN 4108-7, SIA 180 and OENORM B 8110-2
  • Flexible press-out membrane seals around cables of various diameters
  • Easy to pierce with nails or cartridge nozzles
  • Multi-layered sealing lips ensure optimum connection to profiled pipes
  • Can be used for more than one cable
  • Can be removed at a later date


The sealing plugs STOPPA are used for the quick and lasting, secure airtight installation of cables in conduits in accordance with DIN 4108–7. 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 32 mm ; 1.26"
Conduit inner diameter 25 mm ; 0.98"
Application temperature > -10 °C ; 14 °F
Temperature resistance permanent -50 °C to 90 °C ; -58 °F to 194 °F
Storage cool and dry

System warranty

We do not leave you on your own. Read here about how extensive the pro clima system warranty is in the worst-case scenario