Central Vacuum Comparison Chart:
Broan Model #	Fan	Light	Night Light	CFM/Sones	Size	Design
710	x	x	x	100/3.5	14-5/8" Diam.	Round Polished Brass
714	x	x	x	100/3.5	14-5/8" Diam.	Round Polished Chrome
720	x	x	x	100/3.5	15-1/8" Square	Square Solid Oak
721	x	x	x	100/3.5	15-1/8" Diam.	Round Solid Oak
722	x	x	x	100/3.5	14-7/8" Across	Octagonal Solid Oak
707	x	x		70/3.5	10-1/2" x 11-1/2"	Square Solid Oak