Fireside Condensate Neutralizer Kit/Universal FCN-30 &lt;300,000 BTU Fireside (TM) Universal Condensate neutralizer for ALL Boilers and Furnaces &lt;300MBH Clear for efortless media inspection/ Media &gt;99% Pure No Fillers or Glues Ready for 1/2" or 3/4" piping rigid piping, easily adapt to barb for flexible tube Manufactured with unions for easy maintenance Easy refill with available refill kits - Don't Throw Away, Just Recharge with Fireside Media