HEPA Carbon Filter, Filter Type HEPA Filter with Activated Carbon, Filter MERV Rating 17, Compatible Extractor Series S-981, Compatible Extractor Manufacturer Part Number S-981-2B, SP-981-2B, Compatible Extractor Grainger Part Number 2YFU4, 4GJP8, Filter Efficiency 99.97 Percent. This item has been restricted from sale in the following state (s): []