This roof exhaust operator is made of high -quality materials to its durability and durability.It seamlessly collaborates with your existing settings to smooth and efficient operations. Compatible models: The roof ventilation of RVs used for automatic lifting is for Maxxfan and for Deluxe replacement components.compatible:4500K,4501K,4541K,4700D,4700N,4700K,4700G,4700CN,4751KS,4761KS,4800K, 4801KKKK,4900D,4900K,4900N,4900G,4951KS,4951KSC,7000K,7001K,74751KS,74951KS,7500K,7501K,8000K, 8001k, 8500K, 8500K, 8501K, 8700D, 8700N, 8700G, 8700K, 8751K, 8751K, 8900D, 8900N, 8900G, 8951k.(Automatic lifting operations easy use and operation) Easy to install: This roof exhaust cover improvement device operator is an alternative to the for operating agency specially designed.No need to modify or adjust a lot, worry -free installation process. If the ventilation cover is not lifted,likely that the gears inside your Lift operator are damaged and need to be replaced with for 10-20281K-1AF Colour:Silver Material:Metal Package Contents: 1 x Roof Ventilation Fan Lift Gear Part Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.