21B Series

Steel Bottom Roller

Narrow Frame Design Bypassing Door Hardware

Wheels and Guides

PART#	DESCRIPTION	NET LENGTH	STD PACK
21-702-000	Top Roller Bracket		25PR
21-708-000	Top Guide Bracket		25PR
21-717-000	Bottom Roller Axle Concave Wheel (use with 21-65x or 21-67x threshold only)		25PR
21-767-000	Bottom Roller Ball Bearing Concave Wheel (use with 21-65x or 21-67x threshold only)		25PR
21-718-000	Bottom Roller Axle Protruding Wheel (use with 21-63x threshold only)		25PR