The Helios Fans KWL-OME is a replacement osmosis membrane specifically designed for use with the HygroBox KWL HB series. It ensures continued optimal performance of the humidity control system by effectively filtering water through reverse osmosis. For the KWL HB 500 model, two KWL-OME membranes are required to maintain proper function. This high-quality component supports the system’s longevity and maintains air quality by enabling consistent humidification.