I have a HF 2 HP DC, retrofitted with a Wynn top-mounted canister filter
(for the top bag) and a bottom-mounted clear plastic bag (fits snugly in
place of the bottom bag of the HF DC). This was a kit, see
<http://wynnenv.com/35A_series_cartridge_kit.htm . The HF unit is then
connected to a garbagecan with cyclone lid, then to the equipment. If
anything would collapse, it would be that clear plastic bag . Never
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