6mm OD PTFE Teflon Filament Tube Coupler / Joiner

This is a 6mm OD PTFE/Teflon filament tube coupler / joiner I designed that does just that - joins two pieces of 6mm OD filament tube together. The filament tubes press fit into the coupler and should fit quite snug without deformation. The tubes insert ~12-14mm into each side for a good fit. Angled/curved filament couplers I made can be found here - http://www.thingiverse.com/thing:1536208.