Filament guide for use with a specific filter.

I made this guide for a specific reason.
I use the filament filter below and I also use a teflon tube with an outer diameter of 3mm to keep my filament clean and dry. This little guide keeps the tube from entering the filter so allowing the filter to do its job properly. Without this guide the teflon tube slid inside the filter.

The filter I used: http://www.thingiverse.com/thing:190118