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Because some houses only have a 3 prong outlet....
Sorry, there was a problem. Please try again later.Houses built more than 30 years ago may still have 3 prong outlets for major appliances. If youre not in a situation where you can re-wire your older home, you need to be able to buy a 3 prong plug.
Sorry, there was a problem. Please try again later.What? You question makes no sense
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