The FrostSafe®, a wafer style bi-directional hingeless damper, is installed in a vent pipe to minimize the thermal exchange of cold and warm air in and out of a vault to help prevent freezing.
Features- Body - High Density Polyethylene
- Membrane - Nylon Reinforced Neoprene
- Damper Seal - PETG: Polyethylene Terephthatate Glycol
- Adaptable to Existing Vent Pipes