Cal Royal 8850 - A Grade 1 Concealed Overhead Door Closer - 105 Degree - Hold-Open - "A" Type Arm
Dorma RTS88 Series Overhead Concealed Door Closer and Mounting Brackets
Hafele 931.84.233 Door Closer concealed DCL33 aluminum black w/hold op
Door Closer Basics: Everything You Need to Know - Dengarden
Concealed Door Closer Brass or Chrome Fire Rated Door Closer Hidden Door Closer | eBay
YYBUSHER Stainless Steel Invisible Concealed Door Closer Hinge System for Wooden Door | Wayfair
concealed-door-closers
RocYork® Invisible Door Closer - EZ Concept US
Bothyi Automatic Door Closer Concealed Door Closer Soft Door Closers Heavy Duty Hidden Door Invisible Closer for Hotel Home Improvement, Silver - Amazon.com