Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x20x4-In. Category_Camping 1" Female Pipe Thread

1" Female Pipe Thread

settings for morning & night support the body's natural sleep & wake cycle

Energy Star: yes

Quick Connect Plug allows for easy installation with no need to rewire

Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x20x4-In. Category_Camping 1" Female Pipe ThreadThe Filtrete, 20 x 20" 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 19 3 4" x 4 3 16".