This Honeywell Compatible Universal Replacement HEPA Filter # HRF-14 comes with a gasket. Gaskets are meant to be placed between each layered HEPA filter. In some instances, not all gaskets will be used.
Can be cleaned by vacuuming, but eventually needs to be replaced.
Honeywell models that need 2 filters: 11520, 12500, 12520, 13531, 17200, 17210, 18150, 17400, 50150, 50200, 51500, 51818, 52000, 61500, 62500
Honeywell models that need 3 filters: 50250 and 13520
Honeywell models that need 4 filters: 50300, 50311, 53000, 53001, 64500, 29500, 83163, 83168, 83188
Also listed as HRF-F1
Replaces these Honeywell filters: 21500, 22500, 23500, 24000, 24500, 29500