Repair kit for SCRV33 Rotary vane Compressor. These rotary vane compressors have four self-wearing carbon vanes. When the vanes become worn to a certain point they no longer catch air and you will notice a large reduction in air flow. These repair kits include four new vanes, a new gasket and two new black, internal air filters. Rotary vane compressors can be rebuilt in 20 - 30 minutes using common tools.