- Crafted from aluminum flat stock and marine certified Reticulated Foam
- Totally permeable
- Moss resistant and anti-fungal
- Will not freeze and will hold its memory to 100% of its thickness
- Filters dripping noise after rainfall in downpipe elbow.
- Made of 3/4 inch thick foam, permeable, will not freeze, anti fungal, anti mildew, made for A or B elbows.