Sentinel 4016 - Heavy Duty - ADA Certified - Grade 1 Hydraulic Door Closer, ADA Certified, Adjustable 1-6 Spring Tension w/ Back Check - Dark Bronze Non-handed Cast Iron Body, 5" x 2-1/4 Hole Pattern w/ Full Cover Multi-size springs 1-6 adjustable power ADA Compliant Latch, Sweep, & Back Check speed adjustments Tri-Packed for regular, top jamb, and parallel arm applications