Can the MLR Retrofit on Older 1000 Series PHI Devices? February 17, 2016 13:24 Updated Answer Unfortunately, the MLR cannot retrofit the PHI 1000 series devices. Applies To MLR Additional Information Related articles 9600/F9600 Narrow Stile Concealed Verticle Rod Exit Devices Precision 100 Series Rim Cross Bar What devices can the MLR be Retrofit to? EHD9000 Closer Templates and Installation Instructions 9300/F9300 Wide Stile RIM Exit Devices