√【Compatible with】Compatible For Select Deluxe Roof Vents With A Powered Lift, √【Compatible Models】4500K,4501K,4541K,4700K,4700N,4700CN,4700G,4700D, 4751KS,4761KS,4800K,4801K,4900K,4900N,4900N,4900N, 4900G,4900D,4951KS,4951KSC,74751KS,74951KS,7000K,7001K,7500K,7501K,8000K,8001K,8500K,8501K,8700K,8700N,8700G,8700D,8751K,8900K, 8900N,8900G,8900D,8951K, √【NOTE】Before installing the new Operator Assembly, turn the shaft clockwise until it stops.This will put the lift mechanism in a fully opened position.Turn the shaft back slightly counter-clockwise to align the flat of the hex socket to be parallel to the operator assembly. √【High-Quality】Made of high quality materials, with oxidation resistance, wear resistance, aging resistance, heat resistance, corrosion resistance.Automatic lift for effortless opening and closing, √【Service】If you encounter any problems during use, please contact me immediately and we will give you a satisfactory