Designed for use with Evolution poke-thru devices, Evolution pre-pour sleeves attach to the structural decking and maintain a 61/8-in. or 81/8-in. cast-in hole. Each sleeve includes three attachment legs, thumb screws, and end caps. After the pour, users simply remove the pre-pour sleeve and insert the poke-thru device in the hole. The sleeve, which is not a fire-classified product, must be removed.
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