Item Details 

Grade D : Just fine - Shows wear and tear from previous usage although working fine. The filter was taken out from a working IC-750.
A : Mint - Almost unused
B : Excellent - Beautiful item for used
C : Good - A few scratches but looks good and works properly 
D : Just fine - Shows wear and tear from previous usage although working fine
E : Imperfect - For parts only, untested, or needed maintenance