DL3127 and DL4727 Insulated Actuated Air Inlets are great for minimum to maximum ventilation when you need precise control of air movement. Each curved blade directs air along the ceiling for proper air mixing and minimizes condensation as well as inlet freeze-up. Housing blades are constructed of virgin PVC for durability to withstand power-washing, yet also fully insulated to minimize condensation. PVC insulated filled lids have no exposed insulation.
When inlet is in the shut-off position, it has been proven to seal up better for reduced fuel usage and have minimal leakage compared to the competition in the industry. All mounting hardware is included and comes pre-installed on the inlets for ease of installation into the ceiling.