How thick a door will your bathroom levers fit?

A contractor from West Virginia says:
What is the thickness of door that a "10-557" will fit? My doors are about and inch thick
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Tom from SWISCO responded:
Thank you for posting. The 10-557 ADA Compliant Lever Handle Assembly should fit on a 1" thick bathroom door. Our 10-556 Knob Assembly will also fit on a 1" door. For more information, please refer to our tutorial on how to install a bathroom lever.

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10-556 : Knob Assembly
10-556
Price: $6.97
Knob Assembly
10-557 : Lever Handle Assembly, ADA Compliant
10-557
Price: $8.05
Lever Handle Assembly, ADA Compliant
How to install the 10-556 lavatory knob assembly.
Video
How to install the 10-556 lavatory knob...