Ok, After no replies I opened it up. Yes a filter but does not show up in the parts manual. Has any one seen one like this?
Nope Luke will not have them. Tried him a few years ago and he said they are hard to find. I went to Parker and just go a small filter. Then connected some tubing and brought the mess out into the tool bay so I could drain it when needed. A lot easier and a pushbutten drain on the bottom. Don't remember the number but about 3 inched long with glass bowl on bottom and a drain.