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Alternatively you may fill in and submit the Contact Form and we will contact you during our office hours.

We would like to thank you for your interest in our products and look forward to speaking to you soon.

Shop Info


conservation core wall vent kits - for imperial bricks

Order Code: PASS CON140BK


External Cowl: Black Iron Effect

Single Kit: £127.20 inc. VAT (£106.00 ex. VAT)
  • Purchase 2 at £121.20 (£101.00 ex. VAT) each
  • Purchase 3 at £117.60 (£98.00 ex. VAT) each
  • All prices include mainland UK delivery (exclusions apply )

For higher volumes please call 01799 528528 for a quote

Iron Effect Finish Over a Stainless Steel External Metal Cowl

  • Maximum water vapour transmission 1.4 litres per 24 hours
  • Maximum floor area per vent kit equals 10m2
  • Main tube length (open), 410mm
  • Main tube length (closed), 250mm
  • Main outer tube diameter equals 154mm (6")
  • Use 162mm diameter core bit drill
  • Internal grille always in white with built in fly screen
  • Instructions are included

Please see above for Core Bit Hire details.

Technical Information

See our Technical Overview for both the Passyfier® Sleeved and Core range of products.


For thicker walls these kits can be extended in 50mm increments as a special order. Please call for more information.

Also see our extensive range of Passyfier® Sleeved Vent Kits .


Passyfier Vents are used as an aid to help control humidity and are NOT to be used as a method of providing ventilation to any gas, oil, or solid fuel appliance. See our ArrestAir-Pro range for air combustion venting.

Key Features

Maximum Water Vapour Transmission Per Kit = 1.4 Litres / 24 hours

Maximum Floor Area Guide Per Vent Kit = 10m2

Used In Solid, Cavity & Timber Frame Walls

Being Non-Mechanical Works Passively 24 Hours Per Day

Makes No Noise & Has No Moving Parts

Telescopic Tube Set Provided For Varying Wall Thicknesses

Key Benefits

Installation Time Reduced Due To Core Bit Drilling

Reduces Draughts & Heat Loss But Still Provides Ventilation

Costs Nothing To Run

Works At Peak Condensation Time

No Night Time Disturbance From Fans Or Compressors

Core Bit Hire

To enable a core installation you can hire* a core bit over 10 days (inclusive of weekend days and bank holidays) at a nominal charge only if a core kit(s) are purchased at the time for any Passyfier Core Wall Kit Variant.

* Subject to a charge, availability & existing wall construction. T & C's apply.

Please see out terms and conditions for core bit hire .

All prices include mainland UK delivery (exclusions apply )

Get Help or Advice!

The Condensation Shop offers a wide range of products to suit numerous condensation and damp related issues.

If you would like assistance in selecting the correct product for your specific problem please call our helpful Sales Team on 01799 528528, during normal opening hours.