Compatible ModelThis replacement vacuum filter is compatible with Bissell Zing Bagless Canister Vacuum series 2156, 2156A, 2156E, 1665, 16652, and 1665W, replacement part number 161-3056, 1613056. (Does NOT compatible with bissell vacuum part number 203-1531, 203-1532, 203-1771,1608602) High Quality2156A filters are made of high quality material to keep your vacuum cleaners suction at maximum levels. The replacement vacuum filter helps in trapping dust particles, dirt, food residue and pet dander while cleaning different surfaces. WashableThe 2156A vacuum Filter is washable. It is recommended to rinse the filter with water once a month and air-dry the filter completely for at least 24 hours before placing it again in the vacuum cleaner. (Note: Turn off and unplug the vacuum before install.) Replacement PeriodA dirty filter will greatly reduce suction power. For optimum performance, change the 2156A filter at least every 3 to 6 months, depending on the vacuuming frequency and amount of dirt cleaned. Easy to InstallThe 2156A HEPA replacement filter is inside the dirt tank. Remove the dirt bin by firmly grasping it and pulling it out, find the release latch and pull it to open the front cover and empty the dirt bin, then replace the old filter with the new one.