Storm-proof with filter case

Storm-proof with filter and filter case. The storm-proof is mounted in the internal part of the wall vent. Storm-proof that saves energy. Regardless of the weather and wind, the storm-proof slows down high air currents, which contributes to lower heating costs. The storm-proof provides good comfort in the room and reduces the risk of drafts. Filter and filter case The storm-proof is equipped with a filter and filter case. The filter protects against dust and insects. The filter is washable. Clean the filter once or twice a year, use mild soap. 10 PPI. The storm-proof fits Fresh TL C and TL DE wall vents.