Type … pleated filter panels
           
                      frame.. wet -strength paper board frame,two piece frame construction
 
                    instruction.. two mating section of the frame overlap one another to provide a double wall. this can against rack,warp,bend under operating and handlig conditions

•          grids..galvanized surpport grid,the media surported with expanded metal to ensure strength
          
            adensive: the plceats tips bonded to the diagonal surpport bars.the adhensive application assure filter integrity .
   
            longevity . 3 months