DF22-1RS/P7.92 DF22-1RS/P-7.92 DF22-1S-7.92(28) DF22-1S-7.92C DF22-1S-7.92C(28) DF22-1S-7.92C928 DF22-1S-792C(28) DF221V DF222 DF2220