Lennox - H6314 - Grate used on the MPB-4035. MPB-4035CNM-B, MPB-4035CPM-B, MPB 4035. MPB 4035CNM-B, MPB 4035CPM-B, MPB4035. MPB4035CNM-B, MPB4035CPM-B, MPB-4530. MPB-4530CNM-B, MPB-4530CPM-B, MPB 4530. MPB 4530CNM-B, MPB 4530CPM-B, MPB4530. MPB4530CNM-B, MPB4530CPM-B, MPD-4035. MPD-4035CNM-B, MPD-4035CPM-B, MPD 4035. MPD 4035CNM-B, MPD 4035CPM-B, MPD4035. MPD4035CNM-B, MPD4035CPM-B, MPD-4530. MPD-4530CNM-B, MPD-4530CPM-B, MPD 4530. MPD 4530CNM-B, MPD 4530CPM-B, MPD4530. MPD4530CNM-B & MPD4530CPM-B - Old Part # H3639 & LB-92406C - Superior Model B600