Rectangular Bubble-tight Damper Now Available in Larger Sizes
Greenheck’s HBT-221 rectangular bubble-tight damper is now available in larger sizes up to 48 by 52 inches in a single section. Greenheck’s HBT-221 rectangular bubble-tight…
Model HBT-221
Commercial Grade Damper Features Rectangular Blade Design
Greenheck Model HBT-221 is a commercial grade rectangular bubble-tight damper with square blades. The rectangular blade design allows for lower pressure drop than bubble-tight dampers…