The Minuteman Absolute Filter Assembly is used on 705-15 air vac and on 30 & 55 gal. adaptor rings using the 750168 and 750433 lid assemblies. The Minuteman 750604 assembly includes:

110001 HEPA Filter
101012 Gasket
761100 Mounting Plate
750011 Prefilter Retainer
703007 Impact Filter

The replacement items Vacline has available are:

HEPA Filter: see 6286H2
Impact Filter: see 6286F2