This is corporate surplus in new Old Stock NOS condition. This is a DirectTV Dish Video Signal / Cable input to output splitter. Self indicates that it is for the 18" x 24" and the 18" x 20" satellite dishes, it should actually work with any of the DirectTV dish sizes, it just shows the ones that were in use at the time of production. Manufactured by: Zinwell. Part Numbers on unit: SAM-4803.
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