Filament Guide Holder

Custom guide holder for aluminum extruder upgrades. 1/4" Push to connect type fittings allow detachment of the guide tubes.

Not sure if you can get both extruders anymore; here's the link for the rep 2 extruder upgrade.....
http://www.ebay.com/itm/Makerbot-Replicator-2-Extruder-Upgrade-Filament-Drive-Build-Plate-Glass-/111532902654?pt=LH_DefaultDomain_0&hash=item19f7e108fe

Here's the rep2x upgrades.......
http://www.ebay.com/itm/Makerbot-Replicator-2X-Extruder-Upgrade-Filament-Drive-Build-Plate-Glass-/141896285178?hash=item2109ad7bfa:g:Mi8AAOSwwbdWMSx8

Dust filters were added later and happen to fit snuggly into the 1/4" fittings......http://www.thingiverse.com/thing:153807