Disc Valve (Exhaust)

Linear Slot Diffuser Sand Trap Louvers Gravity Louvers Opposed Blade Damper (OBD) Volume Control Damper Fire Smoke Damper Vent Cap turbo ventilator Butterfly Damper Round Diffuser Jet Nozzle Disc Valve (Exhaust) Exhaust Air Diffuser Jet Diffuser Double Deflection Grille stainless steel Linear Bar Grille Plaque Diffuser Single Deflection Grille Spiral, Round flexible air duct Swirl Diffuser Square Diffuser Intake/Exhaust Louvers