UltraWater Filter   [more info]	$109.95
	Fluoride Filter   [more info]	$79.95
	.1M Vesta Filter   [more info]	$99.95
	Sediment Filter   [more info]	$44.95

What's the difference?:
There are two filters for your Vesta water ionizer. The filter in position #1 is a sediment filter which removes particulates; and protects and extends the life of your Vesta Biostone Filter. The Vesta Biostone filter goes in position #2 of your Vesta (right-side filter housing). The Biostone filter improves water taste and reduces odors. It is particularly effective in removing chlorine and adding calcium.

more about the Vesta GL-988