Air Excellent DBOX Internal Air Restrictor Ring

An Air Excellent distribution box accessory used to set the flow rate in a duct.

• Low system pressure loss due to radial design
• Airtightness class D/ATC 2 up +/- 2000 Pa, which minimises fan energy use and sound production
• Modular manifolds, which can be used with all duct types
• Semi-rigid ducts on a roll and airtight mechanical connections, which are extremely easy to install
• TÜV SÜD and ISEGA tested and certified, REACH compliant