Patent Publication Number: US-D654561-S

Title: Filter unit

Description:
FIG. 1  is a top perspective view of a filter unit of the present invention; 
         FIG. 2  is a front elevational view of the filter unit of  FIG. 1 ; 
         FIG. 3  is a rear elevational view of the filter unit of  FIG. 1 ; 
         FIG. 4  is a first side elevational view of the filter unit of  FIG. 1 ; 
         FIG. 5  is a second side elevational view of the filter unit of  FIG. 1 ; 
         FIG. 6  is a top plan view of the filter unit of  FIG. 1 ; and, 
         FIG. 7  is a bottom plan view of the filter unit of  FIG. 1 . 
       The broken line showing is included for the purpose of illustrating and forms no part of the claimed design.