Schweigen EnviroShield 150mm Smart Shutter draft seal All mechanical load on membranes

All mechanical load on membranes should be distributed to mechanical fasteners

and 150mm ducting (not included)

for use with compatible gun applicator

High water resistance

Schweigen EnviroShield 150mm Smart Shutter draft seal All mechanical load on membranesSchweigen EnviroShield Modular Draft Stopper Engineered in Germany for Ultimate Airtight Performance Discover the future of home ventilation with the Schweigen EnviroShield, the intelligent modular draft stopper designed to eliminate unwanted air infiltration in inline ducted exhaust systems. Featured in our in depth YouTube video, this German engineered innovation outperforms traditional gravity and spring loaded dampers, delivering superior energy