Fuel pickup tube filter sock?

I bought a Tanks Inc fuel injection tank and pickup assembly (for use until I convert to fuel injection). The pickup assembly uses a 1/2" OD nylon tube. For those with similar setups, what have did you use for a filter sock or in tank filter? How was it secured? I can't find any socks that are 1/2" ID to slide over the tube. Tanks Inc does not sell any filter socks.