Section 10: Knock-Out Boxes
Foley Knock-out Box Foley Knock-out Box Available Tops 2’ x 2’ x 3’ Foley Knock-out Box 3’ x 3’ x 4’ Foley Knock-out Box 4’ x 4’ x 4’ Foley Knock-out Box 5’ x 5’ x 5’ Foley Knock-out Box 3’ x 3’ x 4’ Foley Knock-out Box Type "B" 4’ x 4’ x 5’ Foley Knock-out Box Type "B"
Knock-out boxes allow for field adjustments by knocking out the concrete in order to insert the drainage pipe.