Compatible with MaxxAir vent 10A20281K1: 4500K, 4501K, 4541K, 4700K, 4700N, 4700CN, 4700G, 4700D, 4751KS, 4761KS, 4800K, 4801K, 4900K, 4900N, 4900G, 4900D, 4951KS, 4951KSC, 7000K, 7001K, 74751KS, 74951KS, 7500K, 7501K, 8000K, 8001K, 8500K, 8501K, 8700K, 8751K, 8700N, 8700G, 8700D, 8751K, 8900K,8900N, 8900G, 8900D,8951K High quality: Aluminum alloy material is durable, corrosion resistance, heat resistance, wear resistance, stronger than plastic, 304 stainless steel screws are not easy to rust.