Amaircare 91A1607ET 16-inch Easy Twist Foam Pre-Filter is Amaircare original replacement pre-filter.
Amaircare 91A1607ET Washable Foam Pre-Filter is used as a sleeve with 16 inch Easy-Twist HEPA filters or ULTRA VOC canisters.
Foam pre-filter traps large dust particles and helps extend the service life of HEPA filter and ULTRA VOC canister.
Amaircare 91-A-1607-ET foam pre-filter is washable and reusable.
The Amaircare Easy Twist foam pre-filter's lifetime: up to 1 Year.
Attention!
Amaircare 91A1607ET Easy Twist Washable Foam Pre-Filter is Sold in Packs of 12 or 24 pre-filters.

Amaircare Part Numbers.
Current: 91A1607ET / 91-A-1607-ET