4000 Premium Surface Mounted Door Closers are for All Medium to High Traffic Commercial Storefront/Industrial Door Applications. These Closers are Manufactured from High-Grade Cast Iron. Packaged with All-Weather Fluid, Parallel Arm Bracket, Wood/Metal Self Tapping Screws, Full Cover, Mounting Templates Included for Regular Arm, Top Jamb and Parallel Arm Mount, Allen Head Adjustment Valves. These Closers Come Standard with Power Adjustable Backcheck, Sweep, Latch, and 1-6 Spring Tension Valves. ANSI Rated A156.4, Grade 1, Certified UL Listed, ADA Compliant, Meets or Exceeds California Building Code Requirements for Minimal Foot Pounds of Pressure, Cycle Tested to Meet or Exceed 2 Million Cycle counts. Available in Aluminum and Dark Bronze.