Tell Manufacturing 600 Series Matte Black Aluminum Hydraulic Adjustable Door Closer Grade 1 Color:Matte Black it features a unique compression

it features a unique compression fit lid that is water and dust resistant

and 3/4”

Four-grind head

Spin-It-Out stripped screw removers are ideal for broken or worn out machine screws

Fits flush with floor

Tell Manufacturing 600 Series Matte Black Aluminum Hydraulic Adjustable Door Closer Grade 1 Color:Matte Black it features a unique compressionThe 600 Series door closer is a grade 1, heavy duty cast aluminum surface applied door closer, designed for interior commercial use and comes with hardware for all installation applications. This closer complies with ANSI A156. 4, UL ULC listed up to three hours fire rated. The closer is an adjustable 1 4 and 3 6 adjustable spring tension. Other finishes available.