Amaircare Washable Foam 14 in Prefilter Package of 24 (91-A-1407-ET)

Leadtime estimated at 3-8 weeks. 

Amaircare MultiPro Washable Foam PreFilter.

Amaircare PartNo: 24x 91-A-1407-ET (91-A-1407-ET) Pack of 24. 

This washable foam prefilter goes around the HEPA.  Size is 14in Easy Twist for Multipro units that use a HEPA.  It typically does not come on the unit when it is initially purchased but can be used as added protection around the HEPA.