The 819M-PFR-1.0-1.5B Flat Black Port Frame Reducer mounts onto the 1.5 inches port frame to change the port frame to 1 inch diameter. This allows accessories designed for smaller port sizes to be used with larger port frames. Coated with flat black. Mount with two M3 size set screws using a 1.5 mm allen wrench, which are included with the part.

819M-PFR-1.0-1.5B平黑色口框减速机安装在1.5英寸口框上，将口框改为1英寸直径。这允许为较小端口尺寸设计的附件与较大的端口框架一起使用。涂有扁平黑色。安装时使用两个M3大小的固定螺丝，使用1.5 mm的内六角扳手。