0.062" Thick Aluminum Internal Panels for PN series plastic boxes; Fits PN-1323, PN-1323-DG, PN-1323-C, PN-1323-MB, PN-1323-DGMB PN-1328, PN-1328-DG, PN-1328-C, PN-1328-MB, PN-1328-DGMB