Replacement carbon air cleaner prefilters fit Whirlpool air purifier models 300, 350, 450, 510, AP300, AP350, AP450, AP510, AP35030H, AP45030H, AP45030S, AP51030H, AP51030L, AP51030S, AP45030K, AP51030K.

Pre-filter reduces odors and larger particles.

Carbon filter should be changed every 3 months.

Includes 4 carbon (charcoal) pre-filter sheets. Genuine Whirlpool Whispure filters.

Original Whirlpool part number 8171434.