While visiting one of the vac places here-the ownwer said he was discontinuing carrying commercial vacs.got a good price on three machines-A Sanitaire 880 with the dump bin,A ProVac backpack vacuum ,and a "Maid Lite"commercial vac.the Maid saver is essentially a chinse copy of an Oreck-works quite well.The Backpac machine is kinda fun-very power ful-has a bag system like a Compact-Tristar vac.A cloth bag with a paper bag insert.It holds more than a TriStar.the machine came with two packs of bags and an extra cloth bag.the Provac folks recommned the backpack machine for restaurant and food service cleaning.It came with three hand tools,a wand,and a bare floor tool and a carpet tool.the unit has good suction and air movement-was kinda fun to use in dusting the house.These are also used for office cleaning.the Eureka machine is neat as well-set it to its highest height-its brushroll REALLY shakes the carpet.Got some sand out of it.The dealer now only wantsd to carry home type machines-I did comment to him that the restuarant chains and other store chains usually order their vacs and other cleaning equipment thru their headquarters or other suppliers.Another good thing about ProVac backpacks-the cord on it is a standard 3 pin extension cord-if you wear it out you can get a replacement anywhere.It came with a 50Ft cord-just as good or better than a central vac-for house cleaning-just plug it into a center outlet in the home and roam anywhere you need to vacuum.I just couldn't resist when he offered the machines.I also have a Royal Backpack machine.got that from the other dealer when he dropped carrying commercial vacs.Now if I could adapt my NSS powernozzle to the backpack--.May be fun to try it.