Choices for Barometric Dampers. Can't seem to find many options. Field Control is one.
Any one seen any thing like Hansson's in the USA. Would like to find one that seals itself off tightly as possible when in the closed position.
http://www.youtube.com/watch?v=cEycuK_9Zb4
Rob
Any one seen any thing like Hansson's in the USA. Would like to find one that seals itself off tightly as possible when in the closed position.
http://www.youtube.com/watch?v=cEycuK_9Zb4
Rob