Assuming you have all the usual basic equipment, it comes with everything you need to use it (main unit with pump, plates, filters, hoses, and anti-sediment tip).It even comes with a stainless wire to make the hose stiffer so you can place the tip anywhere in your carboy you want (like out of the lees!)
Oh yeh, cold stabilization helps alot, too.I used to get some wine diamonds even with my filtered wines (especially from those 23L kits). Cold stabilization at 30F for 2 weeks before filtering takes care of it - any diamonds settle out then instead of in your bottles. Haven't had any diamonds since I started doing that.Edited by: Mark