Eureka / Sanitaire Double Zipper Bag Unit, Blue, 2-Screw 370 Comfort This replacement field coil fits

This replacement field coil fits the Royal 618 and 680 and is a core motor component that generates the electromagnetic field the motor needs to turn

On hard-working commercial uprights the hood is exposed to constant bumping and can crack

Bissell 1623

It installs as a direct swap for the original hose

Eureka / Sanitaire Double Zipper Bag Unit, Blue, 2-Screw 370 Comfort This replacement field coil fitsThis is the blue double zipper bag unit for Eureka and Sanitaire commercial upright vacuums, configured as an ST shakeout bag with a 2 screw mount. The dual zipper design gives operators access for both inner bag changes and shakeout emptying, while the two screw bracket fastens the bag securely to the vacuum body. Commercial outer bags take constant handling, and worn zippers, torn seams, or a loose mount let dust escape and slow down servicing.