Sisneros Bros. Mfg. Round Volume Control Dampers are good for low, medium, and high pressure systems. This is a very high quality product manufactured at a very low cost. Dampers can be produced in Galvanized, PVC Coated, Carbon Steel, Aluminum, Stainless Steel, and Paint lock metals. Galvanized volume dampers are usually stocked and ready for immediate shipment
Diameter sizes - 4’’- 28’’
Our Volume Dampers Meet the Construction Specs and Demands of Wal-Mart and are approved for installation in Wal-Mart centers