This filter is an expandable replacement filter and has a MERV 11 efficiency rating. It fits the following air cleaner models:
- And Source 1 Models S1-FM210 and S1-TM11PAC20252.
The filter comes with 4 wire supports and is easy to assemble.
Click here to view Magnet Expandable Filter Assembly Instructions.
Made by Magnet / Patent Pending
This product is not manufactured or distributed by Research Products Corporation, owner of the registered trademark Aprilaire.