The BEAST DEFENDER is very provides superior protection against insects while having a good air circulation. The plastic mesh BEAST DEFENDER fits easily on or / _ÌÔÌ__ÌÔÌ_et outside extractors and conduits. Elastic, this filter is positioned with Velcro strips for best outfit, perfect fit. Catches insects and mold. Usable on intracteurs and extractors. For intracteurs rooms crops provide a metal sleeve of corresponding diameter. UV-resistant and washable. 100mm.