This is a slim cover, grade 1 closer that has the same hole pattern as a Norton 8301/8501
Cal-Royal 441 Series
$36.47
Mounting Bracket for Door Coordinator Stop Width up to 2 1/4"
Cal-Royal 801 Series
$160.93
Grade 1 Full Cover Closure Barrier Free Adjustable Size 1-6 painted Aluminum
Cal-Royal 801 Series
$160.93
Grade 1 Slim Cover Closer Barrier Free Adjustable Size 1-6 painted Aluminum