Numatic HEPA Module for NVD750/WMD750

A HEPA cartridge filter self contained in a steel housing, offering 0.5 micron @ 99.997% filtration efficiency. Upgrades these machines to "M" class filtration standards. Simply clipped between the power head and collection drum. Used with the separate primary pre-filter mounted within the collection drum. For maximum operator protection (NVD750) use the HepaFlo bags to ensure easy and safe emptying. Please note this filter fits the NVD and WMD 750 machines with a White metal drum and will not fit the models with a Red Drum.