Beam Alliance Oval-to-Round Tool Adaptor for Central Vacuum Wands CLASSIC I CR This washable Dyson pre-filter replaces

This washable Dyson pre-filter replaces the pre-motor filter in the DC31

It is Hoover part #440014616 (Part #440014616)

Simplicity S30D

Construction: pleated HEPA cartridge rated 99

Beam Alliance Oval-to-Round Tool Adaptor for Central Vacuum Wands CLASSIC I CR This washable Dyson pre-filter replacesBridge two tool standards with the Beam Alliance oval to round tool adaptor (Part #045275). This connector lets you attach round fitting cleaning tools to a Beam Alliance oval wand, so you can keep using your existing brushes, crevice tools and upholstery attachments instead of replacing the whole set. The Beam Alliance central vacuum system uses an oval wand profile, while many popular vacuum attachments are built for the standard round connection.