Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x25x4-In. Category_Key Holders Bi-metal utility blades are shatter

Bi-metal utility blades are shatter resistant

The Shelter black galvanized steel adjustable chimney cover is the durable and economic choice for chimneys in most regions

metal base & feeding ports

For use with ceiling tile

Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x25x4-In. Category_Key Holders Bi-metal utility blades are shatterThe Filtrete, 20" x 25" x 4", Allergen Reduction Filter, 3 Month Filter, For Housing Units Accommodating 4 " Nominal Size Filters & Is For Residential Use, Electrostatically Charged, Attracts & Captures Particles Like Pollen, Mold Spores, & Dust Mite Debris, MPR Rating 1550, Last Up To 12 Months. Actual size: 19 3 4" x 24 7 16" x 4 3 16".