Zehnder Fire Rated Airbrick and Ducting Kit for Rectangular Ducting 471 234 250 whether you would like the

whether you would like the humidistat to trigger operation or not

Displacement (nominal) 251 ltr/Min (8

used at normal dust content

Hygienic Plate Heat Exchanger

Zehnder Fire Rated Airbrick and Ducting Kit for Rectangular Ducting 471 234 250 whether you would like theFire Rated Airbrick and Ducting Kits: The firerated airbrick and duct transition kits are designed for integration into external wall constructions during the build phase, in accordance with Building Regulations Approved Document B (Fire Safety). The airbrick incorporates a pictureframe surround to facilitate accurate positioning and straightforward installation. A mechanically fixed mounting system is employed to provide a secure, stable, and durable