The life span does vary by brand. Some last a lot longer, and some (unusually) expire early. But, typical lifespans for the Hiblow is 2-3 years while the Gast Rotary Vane has an average lifespan of 5-10 years.
Fortunantly both the Hiblow and the Gast compressors can be rebuilt, at your request, considering that they all wear differenlty. Our compressors are given a 2 year warranty upon installation and maintain the standard manufacture warranty as well.