FRP Air Control Products
Hartzell's fiberglass dampers and shutters help prevent back drafts and control air intake or relief in a corrosive environment where standard dampers and shutters would deteriorate. It is best suited for environments where corrosive elements exist in fume or vapor form. These fiberglass dampers and shutters are available in standard and custom sizes.
Series FFL
Series FEP
Series FLC
Fiberglass Low Velocity Center-Pivoted Damper
Series FCO
Fiberglass Volume Control Damper, Opposed Blade
Series FCP
Fiberglass Volume Control Damper, Parallel Blade