External Pre-filter

Standard

Optional

Optional

Optional

Standard

Quartz Filtration

Yes

Yes

Yes

Yes

No

Proprietary blend of KDF media

Yes

No

No

No

No

Proprietary blend of GAC Media

Yes

No

No

No

No

Anti-Scaling

Yes

Yes

No

Yes

No

Eliminates Microbes

Yes

No

Maybe

Maybe

Yes

Eliminates Chlorine

Yes

No

Yes

Yes

Yes

Non-aggressive water

Yes

Yes

Yes

Yes

No

Eliminates Lead

Yes

No

No

No

Yes

Removes soluble Iron

Yes

No

No

No

Yes

Drink from every tap

Yes

No

Yes

No

No

Cost

Inexpensive

Expensive

Expensive

Expensive

Expensive

Maintenance

Minimal

Heavy

Minimal

Moderate

Heavy

Waste

Minimal

Heavy

Minimal

Moderate

Heavy

Environment

No impact; beneficial

Heavy impact

Minimal

Moderate

Moderate