The 2200 Collection are superior-performance, small-leakage control dampers made with a thermally broken concept to attenuate thermal transfer and reduce condensation. The 2200TB product characteristics thermally damaged blades, when the 2200TBF product involves each thermally damaged blades and frame for enhanced Vitality effectiveness. Model D0110DOW, D0120DOW, D0110GOW, D0120GOW ar... https://zanewocqe.blogdal.com/37396893/the-2-minute-rule-for-dampers-for-industrial-sector