Erinice Fine Dust Vacuum Filter for Miele TriFlex HX1 FSF Pro Cat & Dog Cordless Stick Vacuum Cleaners Accessories, HX-FSF HEPA Filter Replacement Part No #11289902 : Amazon.co.uk: Home & Kitchen
Merck Steritop™ Sterile Vacuum Bottle-Top Filters With 500mL funnel; PES membrane; Pore size: 0.22μm; For neck size 33mm Products | Fisher Scientific
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Filters For Dust Control and Industrial Vacuums - PWM Sales