PN11 ELECTRIC POWER HEADThis economical electric power head is built for households that have low to medium pile carpets. Containing a metal agitator that operates on a geared belt means the maintenance on this unit will be easy for the years to come. This power brush has an on off switch, and will work with hoses where there is or isn't a power switch in the handle. This unit fits all canister and central vacuum systems with a 1 1 4" inside mount extension tube and two pin