Kerrville 
Bissell Bagless Upper Tank Filter - Part No. 18-2302-02
Bissell Bagless Upper Tank Filter for model 3575 / 3590 / 6590 - Part No. 18-2302-02
Gray, foam ring, dirt cup filter is designed to fit Cleanview 3575, 3590, 3591, 6590, 8975 and 8990 model vacs using Style 8 C8 bags.