Description: Commercial Hydraulic Door Closer Is 156.4 Grade 1 ANSI Certified And UL 10C Fire Rated. Measures: 1-3/4" H x 8-15/16" L - Parallel Bracket: 4-13/16" L x 3-17/32" W. Material: Housing made of Non-Corroding Aluminum.
Features: Permanent lubricating hydraulic fluid.