16x25x4 MERV 11 3M Filtrete Size Replacement Filters. Actual Size 15-1/2" x 24-/12" x 3-5/8" Case of 4 Made by Furnace Filters.Ca Part #F825-0432 Actual Size 15 7/8" x

Actual Size 15 7/8" x 24 1/4" x 3"

This Filter Replaces the 2 Cells in the 16 x 20 ELECTRO-AIR EAMU 1620 & SAS 10 Electronic Air Cleaners

you will need to turn Power Switch Off  for the Electronic Air Cleaner permanently and remove the 2 Cells

Used to determine when to change furnace filter by measuring airflow resistance

Installed between your furnace air filter and your furnace blower

16x25x4 MERV 11 3M Filtrete Size Replacement Filters. Actual Size 15-1/2" x 24-/12" x 3-5/8" Case of 4 Made by Furnace Filters.Ca Part #F825-0432 Actual Size 15 7/8" xStandard 16 x 25 x 4 MERV 11 Rated Pleated Filters Actual Size 15 1 2" x 24 12" x 3 5 8" Exact Replacement for 3M Filtrete 16 x 25 x 4 Air Cleaning Filter Manufactured in Canada by FurnaceFilters. Ca Case of 4