Blockout Sleeve, Plastic 3" Crete Sleeve
Part No. 18-607
Using this plastic sleeve allows you to create a 3" diameter opening in up to 8 1/2" of concrete. Made of plastic the part is easy to install, is cost effective and is very lightweight. Note that two sleeves can be stacked on top of each other to provide blockouts for floors up to 14 1/2" thick.