Corbin Russwin ML193 V50 Indicator for Sectional Trim - Vacant/Occupied
Schlage L9040-06A Privacy Mortise Lock with L283-722 Indicator
Privacy Indicator Handle Door Lock - Occupied Door Lever Vacant or in-use Privacy Door Handle, ANSI Commercial Grade2, Perfect for Public Restrooms Including Restaurants, Hospitals - Amazon.com
Yale D292 One-Sided Deadbolt with Occupancy Indicator
Vacant Occupied Bathroom Lock, Zinc Alloy Latch Indicating Lock Bathroom Door Privacy Lock Indicator Bolt Vacant/Engaged Bathroom WC Public Restroom Toilet Privacy Partition Door Lock Latch - Amazon.com
P-150 Pocket Door Privacy Lock
Door Lock Indicator,Toilet Bathroom Lock Vacant/Engaged Chrome Latch Indicating DeadBolt Public Restroom Toilet Privacy Partition Door Lock Latch (Satin Nickel) - Amazon.com
Occupied & Engaged Door Locks - Making it Lovely
Mutex Bls2 Bathroom Indicator Privacy Door Knob In-use Occupied or Vacant Nickel for sale online | eBay
L-100 INDICATOR
Occupied/Open Bathroom Privacy Latch with Narrow Victorian Turnlatch(ZLW-43D)
P-100 Pocket Door Privacy Lock
Engaged Indicator Bolt Vacant/Engaged Bathroom WC Public Restroom Toilet Privacy Partition Door Lock Latch - AliExpress