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UL Listed Door Closer

UL Listed Door Closer, we have written about these before, but we get so many inquires about so and so number Listed Door Closer I thought it might be a good time to revisit it. The following is an explanation

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Norton door closer model 20-1624-4001

We have customers calling with this 20-1624-4001 number usually about 3 times a month.   They are finding this number on the bottom of the door closer, usually on the back of the closer, so the only way to find it,

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