Highlights:
- Length : 17 in.
- Material : Copper
- Minimum Temperature : -20 deg. F
- Keeps all roof vents (sewer, furnace, radon) from freezing up in the winter
- The copper conducts heat from the sun. Helps melt snow from top of vent
- Prevents harmful gases from leaking back into your home
- Ideal for septic systems
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