CR441/TNDM ... Cal-Royal CR441
• CR441 Tandem Connector Sleeve Nut
• Mounting Plate
• Master Cover
• Universal use for regular arm, top jamb, or parallel arm
mounting
ARM. Grade 1 Hydraulic Door Closers : CR441 Series
SPECS: Click on link
https://www.cal-royal.com/product/cr441-series/
Then select "Accessories"