1 HEPA Filter with PLASTIC FRAME 4 Carbon Pre Filters Compatible with Whirlpool Whispure 1183054K 8171434K Fits AP300 AP350 AP450 AP510 AP51030K AP51030KB AP45030K WP500 WP1000 Air Purifiers HEPA Filter captures particles as small as 0.3 microns like dust, and smoke. Carbon also acts as an odor cleansing for your air of cooking odors and smoke. We have made a complete commitment in making you happy with your purchase. Our Policy: * Please check ETA before placing the order. * Items returned not in original conditions are subject to a 50% deduction or deny any credit. The part must not have any type of damage, such as signs of installation by the customer, marks, or scratch. Please contact us through messages for the following reasons :Our respond time is 24 hours. If you did not receive your item within the ETA . If you received an item that is does not fit, please provide us your model and serial number to check. If you need to return an item . Item not as described for one of the following reasons (Item is defective, Doesn't match description or photos, Received wrong item, Missing parts or pieces, Arrived damaged). Thank You for Shopping!