ROVAC® 3 Motor Powerhead draws 405 CFM at 70" water column suction. Use one, two or three motors as needed for task at hand. Able to control dust during sweeping and pickup debris during final cleanup. Three levels of filtration, SootStop dacron pre-filter, blue fluoropolymer coated primary microbag filter and HEPA cartridge filter. Use of SootStop dacron bag is optional, but highly recommended whenever fly ash is encountered such as with oil or coal burning appliance chimneys. Microbag filter stops 99% of fine debris, HEPA filter assures that no dust will enter your customer's home. Rugged roto-molded plastic 15 gallon tank. Comes with a SPARE microbag filter so you can wash one and use the other. Hoses include the 4" dust collector hose which is the primary chimney sweeping hose. The 3" gray multiply hose is for dryer vent cleaning with our (9521) Y-Adapter. And the 1 1/2" hose and accessories are for debris cleanup. Accessories include a round brush, crevice tool and floor brush. 90 day warranty on complete unit, 1 year warranty on the motors and unlimited rear wheel warranty. See YouTube video on how to check motor brushes (item 1143), https://www.youtube.com/watch?v=QHQYXB6dJfg.
Video below shows use of a three motor Rovac to clean a Franklin Fireplace flue in the UK.