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RE: Filter Necessity, MOV's & Value

I do not know anything about whole house surge protectors with filters. However, my feeling is that a filter would not make sense for this type of circuit since the purpose of the protector is to divert the surge. It is not intended to pass any current through the house circuitry. So exactly what would the intent be for such a filter?

Regarding the Environmental Potentials unit: I looked into this last year. It contains sacrificial MOV's which eventually render the unit inoperable and it must be replaced. At $750.00 and the electrician's service charge this seemed to me a very poor value.

All the units to my knowledge use MOV's so there is not much choice. I opted for the Eaton HSPT2ULTRA recommended for high lightning prone locations. No unit protects against a direct lightning strike but aids in diverting resultant surges from nearby strikes. I paid an electrician $200.00 for the unit including installation. This was a much better value proposition than the Environmental Protection unit since they both will eventually wear out anyway.

For recommendations please see both links:


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