Prime-Line S 4180 Door Knob Lock-Out Device – Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More – Keyed Alike, Diecast, Gray (Single Pack)

Price: $25.99 - $13.76
(as of Mar 20,2026 09:02:41 UTC – Details)

Features:
– Prevents access to keyhole on entry doorknob
– Durable diecast cylinder held in place with removable O-ring
– Can be used for evictions, rentals, home sales, job sites, and more
– Fits round doorknobs with a max diameter of 2-7/16 inch
– Quick and easy solution for keeping keyholders out

Pros:
– Provides security without having to replace entire knob and lock system
– Easy to install and remove for cleaning
– Can be used in a variety of situations
– Prevents unauthorized access by key

Cons:
– May not fit all types of doorknobs
– Does not prevent handle from being turned

Overall, the Prime-Line S 4180 Door Knob Lock-Out Device is a convenient and effective way to prevent access to the keyhole on entry doorknobs. It is a versatile tool that can be used in a variety of situations where you want to keep keyholders out.