N1 - Allows the back assembly to extend farther back to allow aditional seat depth, while the backrest remains within the standard height range. This option should be specified for users of average, or above-average, height, allowing users with above-average thigh lengths to sit properly in the J700-Series and J200-Series models.

NOTE: This configuration is the standard Backrest Depth Adjuster option on the J200 and J700 series chairs with the #2 and #7 seats.

N3 - Allows the back assembly to move farther forward. As a general rule, this option would be used for users of below-average height.

NOTE: This configuration is an option on J200 and J700 series chairs with #2 and #7 seats.

N4 - Allows the back assembly to extend farther back to allow additional seat depth on J700 series and J200 series task chairs with the #6 and #8 seats.


N5 - Backrest starts at the normal position and extends farther back to allow additional seat depth on J2500 and J3500 series chairs.

NOTE: This configuration is the standard Backrest Depth Adjuster option on J2500 and J3500 series chairs with the #2 and #7 seats.

N6 - Backrest starts at the normal position and extends farther back to allow additional seat depth on model J2508 or J3508.

NOTE: This configuration is the standard Backrest Depth Adjuster option on the J2500 and J3500 series chairs with the #8 seats.

NOTE: This configuration is an option on high-back chairs with the #2 and #7 seats.