This small unit is for making your home brewed wine sparkling clear. Works as new but is missing one of the "port fittings" (I have been using it with friction fit with the right size tubing; a replacement part can be purchased on-line for about $10). Comes with two sets of #2 filters and 6 sets of #3 filter. The unit and 8 filters sets would cost you about $250 if you bought new.