FR30 and FR50 Nozzles - For use with the following machinesHD 6/13 C PlusHD 6/12-4 C PlusHD 6/13 CX PlusHD 7/18-4 M PlusHDS 550 C EcoHDS 551 C EcoHDS 601 CHD 830 BSHD 728 B CageHD 801 B CageHDS 801 BHDS 801 D