Manufactured by C-vac to fit vacuums which use Mastercraft 306061 or 476617 including EnviroMaster P47 series and HEPA Backpacks. Each filter is tested and certified in accordance with industry standards to have a minimum efficiency of 99.97% on 0.3 microns.
Made in the USA.
About the manufacturer:Critical-Vac Filtration Corp. (C-vac) has been an industry leader for over 25 years specializing in the design and manufacture of HEPA and ULPA filtration products for OEM and aftermarket vacuum cleaner applications. For specification detail on this product go to the manufacturer webpage at www.c-vac.com.
Webpage