I can't think of who makes it, but I have seen one on Tower like I bought at the LHS. It is clear plastic with two sizes of screens and polished alum ends. It is thin enough one could be used on the clunk line in the tank. I am at work or I would put a pic of it. I always use one now. I once was lazy about it. I had an engine I could not tune. I pulled the carb apart and found a small plastic shaving in the spraybar. It was a piece of the tank.

David