Review on 🔍 HIMrHEPA 2 PACK Vacuum Filter: Compatible with Shark DuoClean Corded Ultra-Light HV390 HV391 HV392 HV394Q Vacuums. Part # 461FFJV390 & 464FFJV390(2 HEPA Filter+2 Foam Filter+2 Pre-Motor Filter) - Efficient Filtration for Optimal Cleaning Performance by Rodney Handy

Improved performance of my vacuum cleaner. The only issue is that the large foam filter is about 1/8 inch longer than the standard Shark foam filter, which causes this section to loosen up a bit when emptying the reservoir. However, this range fits well when mounted on the vacuum cleaner itself and doesn't appear to negatively impact performance.