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The Whirlpool 8171433 filter fits the following air purifier models
This Whirlpool Whispure 8171433 Air Pre-Filter (Small) is made from Carbon (Charcoal) and pre-cleans the air, reduces odors and filters out larger particles therefore extending the life of your HEPA air filter. The Whirlpool Whispure 8171433 is also known by part number 8171433K and WP-1443D.
Pack contains 4 filters -- a 1 year supply!
The Whirlpool 8171433 specifications:
Genuine Whirlpool Whispure part.