Protect Plus Air 220301 Basic Pleated Filter, 20" x 30" x 1". 90 Day filter. 23 times more effective than fiberglass filters. Filters airborne allergens including dust, dirt and pollen. Helps reduce dust and dirt buildup in furnace systems and air ducts. Cardboard frame material. Made in the USA.
Size: 20" x 30" x 1"
Dust reduction - basic merv 7