BioStone filters are made for a variety of ionizer models and there are two to choose from.

If you have any of the following ionizers, these filters will work for you.  These are good for the:

• Aquarius
• Orion
• Melody / Isis
• Venus
• Neptune
• Microlite
• Delphi
• Athena
• Movella
• Regency Elite
• Regency X

There are two types, the BioStone Plus and the .01M Ultra BioStone.  Find out more below.
 

BioStone Plus Filter

The BioStone Plus is made in the USA using NSF-certified components.  Vortex hydraulics ensure longevity and optimal performance.  The latest filter uses the newest available technologies for improved flow rate and upgraded removal of contaminates.  Increased contact time and reduced resistance makes for cleaner water.  This is a great choice for removing chloramines, chlorine and volatile organic compounds, for reducing heavy metals and to improve taste.  Another element in the filter prevents the effects of hard water scale.  This filter lasts for around 1000 gallons.
 

.01 Micron Ultra Biostone

The Ultra is an upgrade filter with unparalleled hollow membrane technology.  It's the only filter for ionizers that removes all bacterial contaminates and water-born virals.  It also has Tourmaline, calcium and anti-microbial GAC.  We recommend you replace this when the filter life indicator reads 499.