56-030-1
MODULAR SOLUTIONS DOOR PART-45MM X 90MM CHAIN PULLY 45MM X 90MM CHAIN PULLY MATERIAL: STEEL TECHNICAL WEIGHT: 0.1 LBS. / 0.05 KG. INCLUDES MOUNTING HARDWARE INFO SUPPORTS AND ALLOWS COUNTERWEIGHT CHAIN TO MOVE COMMONLY USED FOR COUNTER WEIGHT LIFT DOORS