14 Inch diameter
center-weighted inverted cloth filter for ALL central vacuums is approximately 14 inch wide, flexible sewn-in compression rim, weighted middle, and about 9 inches tall when relaxed (and lot longer when pulled). The circumference is of the outside of your vacuum unit will be about 44". NOTE: If the recess rim it snaps into is wider than 14 inches this filter will not work (some Beam and some Nutone regardless of cross references found on this site). Also replaces bag 110345, 110340, and 110341 and fits Beam 294, 289, 387, 397, 697, 2100, 2200, 2250, and 2500. To remove, grab top side and pull to center (or use screw driver to create a gap). Outer rim flexes in and the filter falls down.