Divisible duct seals 20mm

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Filoform divisible duct sealing sets for subducts have been developed to provide and effective and simple solution to all Gas and Watertight duct sealing requirements.

This modular system enables you to install it easily onto to new and existing installations. Due to the compact design the seals can be installed in all situations, even in locations with difficult access.

For use on subducts of 20mm.


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  • Gas and Watertight up to 0.50 bar
  • Suitable for retrofitting.
  • Easy installation.
  • Slim design.
  • Other versions available upon request.
ductafdichting 10-20mm






Dimensions A (mm) B (mm) Weight (gr.)
Duct seal 20mm 36 34 25


Material specification

Properties Value
Plastic scales glassfibre reinforced
Cutting block glassfibre reinforced
Sealing plug silicone
Sealing up to 0,5 bar
Pull-out force duct seal vs duct ≥ 200N
Mechanical compression strength ≥ 1000N, 10 sec.
More Information
More information


  • 2 pieces of plastic shells with click together fixings
  • 1 piece cutting block
  • 1 rubber seal
  • Illustrated installation instructions

10-20mm duct seal

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Grouped product items
Sku Product Name Colour Cable Diameter (mm)

Enter the quantities you want to order / request.

Keep the quantities equal to the Order unit

Order unit
7822820.1 Duct seal 20mm / 12.0 > 9.4 mm black 12,0-9,4 Order unit 25 pcs/carton
7822820.2 Duct seal 20mm / 10.0 > 8.0 mm grey 10,0-8,0 Order unit 25 pcs/carton
7822820.3 Duct seal 20mm / 8.0 > 6.5 mm blue 8,0-6,5 Order unit 25 pcs/carton
7822820.5 Duct seal 20mm / 5.0 > 3.5mm green 5,0-3,5 Order unit 25 pcs/carton
7822820.4 Duct seal 20mm / 6.5 > 5.0mm red 6,5-5,0 Order unit 25 pcs/carton