Universal Carbon HEPA Pre-Filter - Replaces Honeywell 38002 & HRF-AP1 Prefilter 16 x 48 x 1/4 nominal size Honeywell replacement for 38002AP and HRF-AP1 Aftermarket replacement product, comes shrink wrapped. Direct replacement for Honeywell 32002, 33002, 34002, 35002, 38002 Premium Activated Carbon, meets or exceeds OEM specifications, Absorbs common house hold odors, and filters pet hair and dust Brand new, not factory seconds or old stock, Can be cut to fit for use on many other air purifiers.